Ductless Heat Pumps – Questions…Answered.

April 2nd, 2013

Q: What is a ductless heating and cooling system?

A ductless heating and cooling system is a highly efficient zonal heating and cooling system that does not require the use of air ducts. Ductless systems consist of an outdoor compressor unit and one or more indoor air-handling units, called “heads”, linked by a dedicated refrigerant line. Indoor heads are typically mounted high on a wall or ceiling covering a 3” hole where the refrigerant line passes through from the outside unit, which is mounted at the base of the house. Each indoor head corresponds with a heating and cooling zone that can be controlled independently.

Q: Do I still need my old heaters?

While a ductless system can be used as a primary heat source, homeowners are encouraged to keep their existing electric heating units as a supplement the Ductless system in case of extreme weather conditions or in hard to reach extremities of the home.

Q: How does a ductless system work?

Ductless systems are reversible, 2-way heat pumps that use electricity to transfer heat between outdoor and indoor air by compressing and expanding refrigerant. Using a refrigerant vapor compression cycle, like a common household refrigerator, ductless systems collect heat from outside the house and deliver it inside on the heating cycle, and vice versa on the cooling cycle. Ductless systems use variable speed compressors with “inverter technology” (AC to DC) in order to continuously match the heating/cooling load, avoiding the on/off cycling of conventional electric resistance and central heating systems that is commonly associated with uncomfortable temperature variations and high energy consumption.

Ductless Systems consist of several parts:

  • An outdoor unit that contains a condensing coil, an inverter-driven variable speed compressor, an expansion valve and a fan to cool the condenser coil.
  • An indoor unit that contains an evaporator and a quiet oscillating fan to distribute air into throughout the heating zone.
  • A refrigerant line-set that is made of insulated copper tubing and is housed in a conduit alongside a power cable, and a condensation drain.
  • A remote control that can be used to set the desired temperature and program in night-time settings.

Q: How is the system controlled?

The system is controlled via remote control that changes temperature as well as mode of operation. Wall mounted controls are also available.

Q: What are appropriate applications for a ductless system?

  • Replacing an existing zonal heating system – Ductless systems are ideal for replacing or supplementing inefficient electric baseboard, wall or ceiling units, woodstoves and other space heaters such as propane or kerosene. A cost effective electric heat conversion in a small house might consist of single system serving the main area of the house, while leaving existing electric baseboards in bedrooms and bathrooms.
  • Room additions – A ductless system can also be implemented when a room is added onto a house or an attic is converted to living space. Rather than extending the home’s existing ductwork or pipes, or adding electric resistance heaters, the ductless sytem can provide efficient heating and cooling.
  • New construction – New home designs can be adapted to take advantage of a ductless system’s many benefits. One or more systems might be installed in various “zones” of the house to simplify installation and minimize refrigerant line length.

Q: Are ductless systems efficient?

Yes! Ductless systems operate using 50% to 75% less energy than electric resistance and forced air systems. Three key factors account for the high efficiency of a ductless system:

  1. Ductless systems allow the user to control each heating/cooling zone independently, eliminating the costly over-heating and cooling common to central air systems. Why pay to heat or cool rooms that are not currently occupied?
  2. While central air systems lose as much as 30% efficiency through air leaks and conduction in the ductwork, ductless systems distribute air directly to each zone, resulting in 25% greater efficiency. Ductless systems use inverter-driven, variable speed compressors that allow the system to maintain constant indoor temperatures by running continuously at higher or lower speeds. Thus, the system can ramp-up or down without great losses in operating efficiency, avoiding the energy intensive on/off cycling common in electric resistance and forced air systems.
  3. Modern ductless systems have ultra-high Seasonal Energy Efficiency Ratios (SEER) between 16 and 22, and Heating Seasonal Performance Factors (HSPF) between 8.5 and 12.

Q: How long have ductless systems been around?

Ductless heating and cooling systems were developed in Japan in the 1970’s and have since become a preferred heating and cooling system throughout Asia and much of Europe. In the United States ductless systems have been used in commercial applications for over 20 years.

Q: How much does a ductless system cost?

The average cost of an installed ductless systems with a single indoor heating/cooling zone is between $3,000 and $5,000. Additional heating zones and greater heating capacities will increase the cost of the system. Other factors that will affect the cost of an installed system include manufacturer and model, refrigerant line-set length, difficulty of installation, and contractor rates.

Q: What incentives are available for ductless systems?

  • Utility Rebates: most utilities in the Northwest are offering their customers cash rebates as high as $1,500 when they upgrade their existing electric resistance heating system to a ductless system. Interest-free financing may also be available. Check with your local utility for details.
  • Federal Tax Credits – Additional Incentives: Federal Tax Credits: tax credits for Consumer Energy Efficiency may be available to taxpayers who purchase a qualified energy-efficient residential ductless systems.

Q: How long will a ductless system last?

With proper maintenance and care a ductless systems should perform for over 20 years. Many of the systems installed during the 1980’s are still functioning well today.

Q: What kind of maintenance does a ductless system require?

Ductless systems require basic maintenance to ensure optimum performance. In most cases maintenance is limited to keeping filters and coils clean. These tasks can easily be performed by the home owner.

Q: How do I know what sized system my house needs?

Ductless systems are sized to meet the heating and cooling needs of a home’s individual zones. There is a great deal of flexibility when it comes to system sizing as one indoor unit can provide between ¾ and 2 ½ tons of heating/cooling depending on its BTU capacity rating. Some common capacities for indoor units are 9k, 12k, 18k, 24k, and 30k BTU. Outdoor units are sized to meet the combined load of all heating/cooling zones. More than one outdoor unit may be necessary for multi-zone systems.

Posted by Wes Diskin

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Equipment You Shouldn’t Keep – Knowing When to Cash In

March 29th, 2013

When you move into an existing home, there are many pieces of equipment that you may not want to keep. Some of them are just old and poor quality, while others cost you a lot of money and others still may be dangerous to you or your children. Before you settle into your space, make sure you have every one of your systems checked thoroughly for potential problems including inefficient heating, dangerous parts or environmentally unfriendly components.

Energy Cost

Number one on your list should be the cost of the energy needed to run your HVAC equipment. Furnaces and air conditioners in particular have become much more energy efficient in the last 10 years so older systems routinely cost much more money to operate than new ones. That doesn’t mean you should immediately rush out to replace your old furnace, but if it isn’t working properly or it’s costing you more money than you’d like, the cost benefit of a new system is often worth checking into.

Other things to check include your insulation, your air quality system, your ventilation system and anything used to heat or cool food in the kitchen – all of which may be less efficient than you might like.

Ozone Depleting Refrigerants

Older appliances like air conditioners may still use ozone depleting refrigerants that are no longer considered safe (or in some cases legal) for home use. If this is the case, not only does your system probably have a very low SEER/HSPF rating, it likely isn’t good for the environment or your own health. So, have your system replaced as soon as possible to avoid potentially negative side effects.

Dangerous Equipment

Finally, there are those pieces of equipment that are dangerous. If you find that your furnace has rust around the edges, your gas lines are kinked, or you have a dangerously out of date heat pump in your backyard, it may be time for some replacements. In general, these systems will last for years longer than they are considered safe and while you probably cannot buy a house without a working and safe furnace and air conditioner, you should still have them inspected carefully and replaced as soon as possible if you suspect problems.

Good HVAC equipment is hard to come by – if your home has it already, you’re in luck, but if you happen to move into a place with poor quality materials and equipment, have it replaced as soon as possible. Your health and wallet will both benefit greatly.

Posted by Wes Diskin

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Understanding Efficiency Ratings of Furnaces

March 21st, 2013

A central furnace or boiler’s efficiency is measured by annual fuel utilization efficiency (AFUE). The Federal Trade Commission requires new furnaces or boilers to display their AFUE so consumers can compare heating efficiencies of various models. AFUE is a measure of how efficient the appliance is in the energy in its fuel over the course of a typical year.

Specifically, AFUE is the ratio of heat output of the furnace or boiler compared to the total energy consumed by a furnace or boiler. An AFUE of 90% means that 90% of the energy in the fuel becomes heat for the home and the other 10% escapes up the chimney and elsewhere. AFUE doesn’t include the heat losses of the duct system or piping, which can be as much as 35% of the energy for output of the furnace when ducts are located in the attic.

An all-electric furnace or boiler has no flue loss through a chimney. The AFUE rating for an all-electric furnace or boiler is between 95% and 100%. The lower values are for units installed outdoors because they have greater jacket heat loss. However, despite their high efficiency, the higher cost of electricity in most parts of the country makes all-electric furnaces or boilers an uneconomic choice. If you are interested in electric heating, consider installing a heat pump system.

The minimum allowed AFUE rating for a non-condensing fossil-fueled, warm-air furnace is 78%; the minimum rating for a fossil-fueled boiler is 80%; and the minimum rating for a gas-fueled steam boiler is 75%. A condensing furnace or boiler condenses the water vapor produced in the combustion process and uses the heat from this condensation. The AFUE rating for a condensing unit can be much higher (by more than 10 percentage points) than a non-condensing furnace. Although condensing units cost more than non-condensing units, the condensing unit can save you money in fuel costs over the 15- to 20-year life of the unit, and is a particularly wise investment in cold climates.

You can identify and compare a system’s efficiency by not only its AFUE but also by its equipment features, listed below.

Old, low-efficiency heating systems:

  • Natural draft that creates a flow of combustion gases
  • Continuous pilot light
  • Heavy heat exchanger
  • 68%–72% AFUE

Mid-efficiency heating systems:

  • Exhaust fan controls the flow of combustion air and combustion gases more precisely
  • Electronic ignition (no pilot light)
  • Compact size and lighter weight to reduce cycling losses
  • Small-diameter flue pipe
  • 80%–83% AFUE

High-efficiency heating systems:

  • Condensing flue gases in a second heat exchanger for extra efficiency
  • Sealed combustion
  • 90%–97% AFUE

Posted by Wes Diskin

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Home Ventilation Options – Make it Tight, Ventilate Right

March 9th, 2013

All the fancy air quality control tools in the world are useless if you don’t have a good ventilation system to circulate air through your home each day. An air filter removes larger particles like dust, dander and pollen, and an electronic air filter removes smaller particles like bacteria, mold, and gases. However, your indoor air will still be poor without a fresh supply of air constantly circulating in from outdoors.

Types of Ventilators

There are a few options here, depending both on the number of contaminants your home has and the amount of heated or cooled air you are willing to lose each day through vents.

The simplest method is an exhaust fan. Fans blow air from your home, creating a negative pressure zone inside. Air inlets then allow new air to enter your home and equalize that pressure. There are also balanced exhaust fans – one fan blowing indoor air out and another fan pulling fresh air in. If you have open flames or gas burning appliances, a balanced exhaust fan is necessary to keep the flames from going out due to the negative pressure caused by a single outlet exhaust fan.

Traditional ventilation, while simple, is also inefficient. In the middle of winter it blows all of your heated air outside and in the summer, it does the same to your cooled air. Your home comfort system likely can keep up with the loss of heat or cooling, so you won’t be less comfortable, but you will certainly pay more on your energy bill.

That’s why heat and energy recovery ventilators are popular in many homes. Especially if you went to the trouble of having your home sealed up tightly to minimize energy loss, these ventilators will save you money.

When air is ventilated through a recovery unit, the energy and heat is transferred between indoor and outdoor air as it passes. In the winter, this means the energy in your indoor air is retained and during the summer, the energy in outdoor air is removed before it enters your home.

Which Method is Best?

The method you choose will depend largely on your current cost of heating and cooling and what types of contaminants you face. Energy recovery ventilators have the added benefit of patching directly into your indoor air quality units, so you won’t need to worry about new contaminants coming in either.

Posted by Wes Diskin

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10 Buying Mistakes to Stay Away From – Helpful Hints for New Equipment

February 28th, 2013

Every year millions of homeowners buy a new HVAC system for their home. Whether for heating, cooling or air quality, they make a huge investment in a new system that will be with them for years to come. Unfortunately, many of those people make big mistakes when buying their next system, so to help you avoid doing so, here are some simple things you should not do.

Ignoring Air Quality – Air quality is about more than comfort. It affects the health of everyone in your home equally. Consider it carefully when installing a new system.

Avoiding Even Heating and Cooling – One room being cooler or warmer than another is not okay. It’s bad for your system and bad for your home’s comfort level. Have insulation and ductwork checked before installation of a new HVAC system.

Not Upgrading Your AFUE or SEER – New systems are highly efficient. Take advantage of that by buying one with a higher AFUE or SEER rating.

Not Vetting Your Contractor – Always spend time checking up on your contractor, reading reviews and asking other customers how their experience was.

Skipping the Service Agreement – Service agreements save money and help your system last longer. Don’t skip them.

Buying the Cheapest Option Available – It may be tempting, but a cheap HVAC system is a bad idea if you want it to last and save you money in heating and cooling. Even a midrange system will save you money in only a few years with higher efficiency ratings.

Picking the Same Model You Already Had – New models are stronger and more efficient. When possible, get an upgrade and your bills will reflect the difference.

Waiting too Long to Buy – The longer you wait, the more you pay in heating and cooling bills for an old, worn down system. If you know you’re going to buy a new system, act fast to save the most possible money.

Not Asking Questions – If you have a question, ask it. There is no such thing as a stupid question when looking for a new HVAC system.

Ignoring Maintenance Recommendations – Maintenance recommendations are optional but almost always to your benefit. Research on your own before committing to anything, but don’t ignore the necessity either.

If you do things just right, your new HVAC system will last for years to come and provide steady, comfortable heating or cooling throughout that time. But, if you rush through things, make a hasty decision and neglect to do any research, you may have issues with your system in far less time than you’d like. Be smart and you’ll be rewarded.

Posted by Wes Diskin

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The 3 Fan Motor Types – ECM Unmasked

February 1st, 2013

It is not commonly known that there are 3 Fan Motor Types, nor is it commonly known to the consumer what the differences are. Below is a brief description of how the three differ and an extended article on the many benefits of the Variable Speed Fan Motor that was written by me previously. As always, thank you for reading.

The PSC Fan Motor. This is also known as the Standard Blower. It usually has around 4 speeds of which one will be selected for when the heat comes on based on the Delta T. The cost to operate this blower 24/7 is approximately $353 per year (based on 3 ton). It is often found in the Single and 2 Stage Furnace.

The X-13 Constant Torque Fan Motor. Also known as just the X-13 ECM or X-13 BOOST because it tends to increase the efficiency ratings of Heat Pumps in order to qualify for rebates. This too has around 4 speeds that will be tapped based on the Delta T, however, this motor will allow the installer to set up a CONSTANT FAN tap to ramp the blower down to 60% of its heating speed to give constant circulation at lower velocities. The cost to operate this blower 27/7 is approximately $120 per year (based on 3 ton). That is having your fan on 24/7, however, at during heating cycles this blower matches the efficiency of the Variable Speed ECM detailed below. This blower is also FAR more forgiving than the Variable when it comes to the existing duct design of different homes.

The Variable Speed ECM Fan Motor

One of the best descriptions is by Danny Heinman

“For any furnace, providing maximum comfort means achieving the proper amount of airflow. This is true for both heating and cooling operations. Unlike conventional single speed motors, a variable speed motor runs at a wide range of speeds. Using intelligent technology, it continually monitors incoming data from your heating and cooling system, and it automatically makes the adjustments necessary to meet your comfort needs. The motor varies the amount of air circulated, compensating for factors like dirty filters by increasing speed. Put simply, it delivers just the right amount of air necessary to provide the desired level of heating and cooling comfort.”

The variable speed motor is very diverse, but it has one flaw. NO speed taps. So if I put this blower into ducting that is designed poorly or has too much restriction, it will ramp up and up and up and up and then finally make you hate me! So, we are very picky about who gets these blowers, however, some duct issues are also easy to solve. That being said, because there are no taps, this motor ramps down to about 30% of its capacity to give you wonderful constant fan operation (see article below). The cost to operate this blower 27/7 is approximately $40 per year (based on 3 ton).

Below is part of an article I wrote about 3 years ago that still rings true.

DISCLAIMER – before running any fan 24/7 your ducts should be sealed. Read more about AeroSeal duct sealing. http://healthefficiencycomfort.blogspot.com/search/label/Duct%20Sealing

…We will start with the most important of the three, which may not be the one you would expect. It is your Health. There is an insane amount of data that will back up my claim, but all you need to know is that while you can see “dust” in the air and settled on surfaces, about 99% of the particles in the air are smaller than 1 micron (1 millionth of a meter). The human eye can only see particles bigger than 10 microns in size. So next time you are looking at all the dust in your air when the sun is shining in your window, think, “Wow, that is only 1%?!” and then call me.

How variable speed effects your health is really very simple. Tell me, what is your furnace doing when it is 68 degrees out side? That’s right, nothing. What is your filter doing while your furnace is doing nothing? More nothing. That is where variable speed comes in; when the furnace is not heating or cooling and the fan in is constant operation,variable speed furnace will continue to slowly and inexpensively circulate air throughout your home. This allows your filters to capture more contaminants (because air is constantly passing through them), so you can breathe easier.

From a Comfort stand point, variable is a god send. Literally, a gift to man sent from heaven. The hilarious thing is that it is just so simple. The element that it all boils down to is constant air flow, period. That is it. Most people do not turn on their fan 24/7 because they believe it will cost them a lot of money (on a standard blower they are correct) and more often than not, it is just too loud. What variable blowers do is ramp the blower down so you do not notice it running, nor does it cost you any more money than standard furnace operation.

Sorry, back to Comfort. Here is what variable speed will do by providing constant air flow. The greatest thing is the even heating and cooling you get. Instead of having the upstairs hot and downstairs cold, variable combines those two environments to create an equal and balanced air temperature. When I turn off my fan in my home the upstairs will generally be about 7-8 degrees warmer than my downstairs; once I turn it back on, the spread becomes 1 degree if not the same! It also solves the age old issue of Cold Blow. This is the burst of cold air that comes from the ducts before the hot air gets to you, just like the cold water at your faucet. Well, just like plumbers have circulation pumps that keep hot water in the pipes at all times so when you turn on the faucet you just get hot water, we do the same thing with variable speed. When the furnace turns on, the ducts are already tempered with warm air flowing through them constantly, so you do not feel that blast of cold air in between heating cycles!

Next is Savings. Not only is the blower itself more efficient at about 8-10x that of a standard blower, but it makes everything it is attached to more efficient as well. You will consistently get better efficiency ratings on heat pumps and air conditioners that are attached to a variable speed system. Not only that, your furnace will operate better and your filters work harder for you.

Perhaps the most abstract, but exciting, feature that variable speed offers is the use of latent BTUs to evenly heat your home. When you touch a light bulb it is hot, your audio/video system is hot, your refrigerator pumps out heat like crazy, and you emit 400 BTUs per hour yourself, not to mention Solar heat gain! Just think if there was a way to take all that heat being generated and distribute it all throughout the house, creating less need for your heating system to turn on! Of course, you know the answer.

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Biological Pollutants In Your Home – Clearing the Air

January 24th, 2013

This page will help you understand:

  1. what indoor biological pollution is
  2. whether your home or lifestyle promotes its development
  3. how to control its growth and buildup

Outdoor air pollution in cities is a major health problem. Much effort and money continues to be spent cleaning up pollution in the outdoor air. But air pollution can be a problem where you least expect it, in the place you may have thought was safest–your home. Many ordinary activities such as cooking, heating, cooling, cleaning, and redecorating can cause the release and spread of indoor pollutants at home. Studies have shown that the air in our homes can be even more polluted than outdoor air.
Many Americans spend up to 90 percent of their time indoors, often at home. Therefore, breathing clean indoor air can have an important impact on health. People who are inside a great deal may be at greater risk of developing health problems, or having problems made worse by indoor air pollutants. These people include infants, young children, the elderly, and those with chronic illnesses.

What Are Biological Pollutants?

Biological pollutants are or were living organisms. They promote poor indoor air quality and may be a major cause of days lost from work or school, and of doctor and hospital visits. Some can even damage surfaces inside and outside your house. Biological pollutants can travel through the air and are often invisible.

Some common indoor biological pollutants are:

  • Animal Dander (minute scales from hair, feathers, or skin)
  • Dust Mite and Cockroach parts
  • Fungi (Molds)
  • Infectious agents (bacteria or viruses)
  • Pollen

Some of these substances are in every home. It is impossible to get rid of them all. Even a spotless home may permit the growth of biological pollutants. Two conditions are essential to support biological growth: nutrients and moisture. These conditions can be found in many locations, such as bathrooms, damp or flooded basements, wet appliances (such as humidifiers or air conditioners), and even some carpets and furniture.
Modern materials and construction techniques may reduce the amount of outside air brought into buildings which may result in high moisture levels inside. Using humidifiers, unvented heaters, and air conditioners in our homes has increased the chances of moisture forming on interior surfaces. This encourages the growth of certain biological pollutants.

The Scope of the Problem

Most information about sources and health effects of biological pollutants is based on studies of large office buildings and two surveys of homes in northern U.S. and Canada. These surveys show that 30% to 50% of all structures have damp conditions which may encourage the growth and buildup of biological pollutants. This percentage is likely to be higher in warm, moist climates.
Some diseases or illnesses have been linked with biological pollutants in the indoor environment. However, many of them also have causes unrelated to the indoor environment. Therefore, we do not know how many health problems relate only to poor indoor air.
All of us are exposed to biological pollutants. However, the effects on our health depend upon the type and amount of biological pollution and the individual person. Some people do not experience health reactions from certain biological pollutants, while others may experience one or more of the following reactions:

  • Allergic
  • Infectious
  • Toxic

Except for the spread of infections indoors, ALLERGIC REACTIONS may be the most common health problem with indoor air quality in homes. They are often connected with animal dander (mostly from cats and dogs), with house dust mites (microscopic animals living in household dust), and with pollen. Allergic reactions can range from mildly uncomfortable to life-threatening, as in a severe asthma attack. Some common signs and symptoms are:

  • Watery eyes
  • Runny nose and sneezing
  • Nasal congestion
  • Itching
  • Coughing
  • Wheezing and difficulty breathing
  • Headache
  • Fatigue

Health experts are especially concerned about people with asthma. These people have very sensitive airways that can react to various irritants, making breathing difficult. The number of people who have asthma has greatly increased in recent years. The number of people with asthma has gone up by 59 percent since 1970, to a total of 9.6 million people. Asthma in children under 15 years of age has increased 41 percent in the same period, to a total of 2.6 million children. The number of deaths from asthma is up by 68 percent since 1979, to a total of almost 4,400 deaths per year.

INFECTIOUS DISEASES caused by bacteria and viruses, such as flu, measles, chicken pox, and tuberculosis, may be spread indoors. Most infectious diseases pass from person to person through physical contact. Crowded conditions with poor air circulation can promote this spread. Some bacteria and viruses thrive in buildings and circulate through indoor ventilation systems. For example, the bacterium causing Legionnaire’s disease, a serious and sometimes lethal infection, and Pontiac Fever, a flu-like illness, have circulated in some large buildings.

Talking to Your Doctor

Are you concerned about the effects on your health that may be related to biological pollutants in your home? Before you discuss your concerns with your doctor, you should know the answers to the following questions. This information can help the doctor determine whether your health problems may be related to biological pollution.

  • Does anyone in the family have frequent headaches, fevers, itchy watery eyes, a stuffy nose, dry throat, or a cough? Does anyone complain of feeling tired or dizzy all the time? Is anyone wheezing or having difficulties breathing on a regular basis?
  • Did these symptoms appear after you moved to a new or different home?
  • Do the symptoms disappear when you go to school or the office or go away on a trip, and return when you come back?
  • Have you recently remodeled your home or done any energy conservation work, such as installing insulation, storm windows, or weather stripping? Did your symptoms occur during or after these activities?
  • Does your home feel humid? Can you see moisture on the windows or on other surfaces, such as walls and ceilings?
  • What is the usual temperature in your home? Is it very hot or cold?
  • Have you recently had water damage?
  • Is your basement wet or damp?
  • Is there any obvious mold or mildew?
  • Does any part of your home have a musty or moldy odor?
  • Is the air stale?
  • Do you have pets?
  • Do your house plants show signs of mold?
  • Do you have air conditioners or humidifiers that have not been properly cleaned?
  • Does your home have cockroaches or rodents?

TOXIC REACTIONS are the least studied and understood health problem caused by some biological air pollutants in the home. Toxins can damage a variety of organs and tissues in the body, including the liver, the central nervous system, the digestive tract, and the immune system.

Coping With the Problem

Checking Your Home

There is no simple and cheap way to sample the air in your home to determine the level of all biological pollutants. Experts suggest that sampling for biological pollutants is not a useful problem-solving tool. Even if you had your home tested, it is almost impossible to know which biological pollutant(s) cause various symptoms or health problems. The amount of most biological substances required to cause disease is unknown and varies from one person to the next.

Does this make the problem sound hopeless? On the contrary, you can take several simple, practical actions to help remove sources of biological pollutants, to help get rid of pollutants, and to prevent their return.

Self-Inspection: A Walk Through Your Home

Begin by touring your household. Follow your nose, and use your eyes. Two major factors help create conditions for biological pollutants to grow: nutrients and constant moisture with poor air circulation.

  • Dust and construction materials, such as wood, wallboard, and insulation, contain nutrients that allow biological pollutants to grow. Firewood also is a source of moisture, fungi, and bugs.
  • Appliances such as humidifiers, kerosene and gas heaters, and gas stoves add moisture to the air.
  • A musty odor, moisture on hard surfaces, or even water stains, may be caused by:
- Air-conditioning units
-

Basements, attics, and crawlspaces
- Bathrooms
- Carpets
- Heating and air-conditioning ducts
- Humidifiers and dehumidifiers
- Refrigerator drip pans.

What You Can Do About Biological Pollutants

Before you give away the family pet or move, there are less drastic steps that can be taken to reduce potential problems. Properly cleaning and maintaining your home can help reduce the problem and may avoid interrupting your normal routine. People who have health problems such as asthma, or are allergic, may need to do this and more. Discuss this with your doctor.

Moisture Control

Water in your home can come from many sources. Water can enter your home by leaking or by seeping through basement floors. Showers or even cooking can add moisture to the air in your home. The amount of moisture that the air in your home can hold depends on the temperature of the air. As the temperature goes down, the air is able to hold less moisture. This is why, in cold weather, moisture condenses on cold surfaces (for example, drops of water form on the inside of a window). This moisture can encourage biological pollutants to grow.

There are many ways to control moisture in your home:

  • Fix leaks and seepage. If water is entering the house from the outside, your options range from simple landscaping to extensive excavation and waterproofing. (The ground should slope away from the house.) Water in the basement can result from the lack of gutters or a water flow toward the house. Water leaks in pipes or around tubs and sinks can provide a place for biological pollutants to grow.
  • Put a plastic cover over dirt in crawlspaces to prevent moisture from coming in from the ground. Be sure crawlspaces are well-ventilated.
  • Use exhaust fans in bathrooms and kitchens to remove moisture to the outside (not into the attic). Vent your clothes dryer to the outside.
  • Turn off certain appliances (such as humidifiers or kerosene heaters) if you notice moisture on windows and other surfaces.
  • Use dehumidifiers and air conditioners, especially in hot, humid climates, to reduce moisture in the air, but be sure that the appliances themselves don’t become sources of biological pollutants.
  • Raise the temperature of cold surfaces where moisture condenses. Use insulation or storm windows. (A storm window installed on the inside works better than one installed on the outside.) Open doors between rooms (especially doors to closets which may be colder than the rooms) to increase circulation. Circulation carries heat to the cold surfaces. Increase air circulation by using fans and by moving furniture from wall corners to promote air and heat circulation. Be sure that your house has a source of fresh air and can expel excessive moisture from the home.
  • Pay special attention to carpet on concrete floors. Carpet can absorb moisture and serve as a place for biological pollutants to grow. Use area rugs which can be taken up and washed often. In certain climates, if carpet is to be installed over a concrete floor, it may be necessary to use a vapor barrier (plastic sheeting) over the concrete and cover that with sub-flooring (insulation covered with plywood) to prevent a moisture problem.
  • Moisture problems and their solutions differ from one climate to another. The Northeast is cold and wet; the
  • Southwest is hot and dry; the South is hot and wet; and the Western Mountain states are cold and dry. All of these regions can have moisture problems. For example, evaporative coolers used in the Southwest can encourage the growth of biological pollutants. In other hot regions, the use of air conditioners which cool the air too quickly may prevent the air conditioners from running long enough to remove excess moisture from the air. The types of construction and weatherization for the different climates can lead to different problems and solutions.
  • Maintain and Clean All Appliances that Come in Contact with Water
  • Have major appliances, such as furnaces, heat pumps and central air conditioners, inspected and cleaned regularly by a professional, especially before seasonal use. Change filters on heating and cooling systems according to manufacturer’s directions. (In general, change filters monthly during use.) When first turning on the heating or air conditioning at the start of the season, consider leaving your home until it airs out.
  • Have window or wall air-conditioning units cleaned and serviced regularly by a professional, especially before the cooling season. Air conditioners can help reduce the entry of allergy-causing pollen. But they may also become a source of biological pollutants if not properly maintained. Clean the coils and incline the drain pans according to manufacturer’s instructions, so water cannot collect in pools.
  • Have furnace-attached humidifiers cleaned and serviced regularly by a professional, especially before the heating season.
  • Follow manufacturer’s instructions when using any type of humidifier. Experts differ on the benefits of using humidifiers. If you do use a portable humidifier (approximately 1 to 2 gallon tanks), be sure to empty its tank every day and refill with distilled or demineralized water, or even fresh tap water if the other types of water are unavailable. For larger portable humidifiers, change the water as recommended by the manufacturer. Unplug the appliance before cleaning. Every third day, clean all surfaces coming in contact with water with a 3% solution of hydrogen peroxide, using a brush to loosen deposits. Some manufacturers recommend using diluted household bleach for cleaning and maintenance, generally in a solution of one-half cup bleach to one gallon water. When using any household chemical, rinse well to remove all traces of chemical before refilling humidifier.
  • Empty dehumidifiers daily and clean often. If possible, have the appliance drip directly into a drain. Follow manufacturer’s instructions for cleaning and maintenance. Always disconnect the appliance before cleaning.
  • Clean refrigerator drip pans regularly according to manufacturer’s instructions. If refrigerator and freezer doors don’t seal properly, moisture may build up and mold can grow. Remove any mold on door gaskets and replace faulty gaskets.
  • Clean
  • Clean mold surfaces, such as showers and kitchen counters.
    Remove meld from walls, ceilings, floors, and panelling. Do not simply cover mold with paint, stain, varnish, or a moisture-proof sealer, as it may resurface.
  • Replace moldy shower curtains, or remove them and scrub well with a household cleaner and rinse before rehanging them.
  • Dust Control
  • Controlling dust is very important for people who are allergic to animal dander and mites. You cannot see mites, but you can either remove their favorite breeding grounds or keep these areas dry and clean. Dust mites can thrive in sofas, stuffed chairs, carpets, and bedding. Open shelves, fabric wallpaper, knickknacks, and venetian blinds are also sources of dust mites. Dust mites live deep in the carpet and are not removed by vacuuming. Many doctors suggest that their mite-allergic patients use washable area rugs rather than wall-to-wall carpet.
  • Always wash bedding in hot water (at least 1300 F) to kill dust mites. Cold water won’t do the job. Launder bedding at least every 7 to 10 days.
  • Use synthetic or foam rubber mattress pads and pillows, and plastic mattress covers if you are allergic. Do not use fuzzy wool blankets, feather or wool-stuffed comforters, and feather pillows.
  • Clean rooms and closets well; dust and vacuum often to remove surface dust. Vacuuming and other cleaning may not remove all animal dander, dust mite material, and other biological pollutants. Some particles are so small they can pass through vacuum bags and remain in the air. If you are allergic to dust, wear a mask when vacuuming or dusting. People who are highly allergy-prone should not perform these tasks. They may even need to leave the house when someone else is cleaning.
  • Before You Move
  • Protect yourself by inspecting your potential new home. If you identify problems, have the landlord or seller correct them before you move in, or even consider moving elsewhere.
  • Have professionals check the heating and cooling system, including humidifiers and vents. Have duct lining and insulation checked for growth.
  • Check for exhaust fans in bathrooms and kitchens. If there are no vents, do the kitchen and bathrooms have at least one window apiece? Does the cooktop have a hood vented outside? Does the clothes dryer vent outside?
  • Are all vents to the outside of the building, not into attics or crawlspaces?
    Look for obvious mold growth throughout the house, including attics, basements, and crawlspaces, and around the foundation. See if there are many plants close to the house, particularly if they are damp and rotting. They are a potential source of biological pollutants. Downspouts from roof gutters should route water away from the building.
  • Look for stains on the walls, floor or carpet (including any carpet over concrete floors) as evidence of previous flooding or moisture problems. Is there moisture on windows and surfaces? Are there signs of leaks or seepage in the basement?
  • Look for rotted building materials which may suggest moisture or water damage.
  • If you or anyone else in the family has a pet allergy, ask if any pets have lived in the home.
  • Examine the design of the building. Remember that in cold climates, overhanging areas, rooms over unheated garages, and closets on outside walls may be prone to problems with biological pollutants.
  • Look for signs of cockroaches.

Where Biological Pollutants May Be Found in the Home

  • Dirty air conditioners
  • Dirty humidifiers and/or dehumidifiers
  • Bathroom without vents or windows
  • Kitchen without vents or windows
  • Dirty refrigerator drip pans
  • Laundry room with unvented dryer
  • Unventilated attic
  • Carpet on damp basement floor
  • Bedding
  • Closet on outside wall
  • Dirty heating/air conditioning system
  • Dogs or cats
  • Water damage (around windows, the roof, or the basement)

Warning! Carefully read instructions for use and any cautionary labeling on cleaning products before beginning cleaning procedures.

Do not mix any chemical products. Especially, never mix cleaners containing bleach with any product (such as ammonia) which does not have instructions for such mixing. When chemicals are combined, a dangerous gas can sometimes be formed.

  • Household chemicals may cause burning or irritation to skin and eyes.
  • Household chemicals may be harmful if swallowed, or inhaled.
  • Avoid contact with skin, eyes, mucous membranes and clothing.
  • Avoid breathing vapor. Open all windows and doors and use an exhaust fan that sends the air outside.
  • Keep household chemicals out of reach of children.
  • Rinse treated surface areas well to remove all traces of chemicals.

Posted by Wes Diskin

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The Book On Indoor Air Quality

January 24th, 2013

You Are What You Breathe…

  • “Crazy, crazy stuff! I am going back to my bubble now…” – Wes
  • 9 out of 10 breaths we draw are likely drawn indoors; at school, the workplace, restaurants, movie theaters and home.
  • The average person breathes in 50,000 pollution particles a day, and takes 20,000 breaths a day.
  • Poor indoor air quality can cause or contribute to the development of chronic respiratory diseases such as asthma and hypersensitivity pneumonitis. It can also cause headaches, dry eyes, nasal congestion, nausea and fatigue.
  • In today’s world, we inhale toxins on a regular basis and it’s almost impossible to eliminate. What you inhale has an immediate and profound effect on such things as appetite, digestion, moods, depression, anxiety, irritability and sleep. Reducing the toxins that you breathe can have a very profound and dramatic impact on your health.
  • According to the State of Massachusetts Study, 1989, “50% of all illness is due to poor indoor air quality.”

CHILDREN – WHO ARE WE HURTING THE MOST?

  • Children spend more than 90% of their time indoors, in the home (especially with the lure of personal computers and video games), school, hockey arenas and shopping malls.
  • Children are most susceptible to indoor air pollution as their small bodies and undeveloped immune systems are less able to effectively cope. Also, children’s lungs are still developing and they have a higher metabolic rate, which means they require more oxygen. They breathe 3 times faster than do adults and so they tend to absorb 3 times more pollutants and toxic vapors than adults, according to the US National Center for Health Statistics.
  • For children and adults, this all translates immune deficiency, lowered IQ rates, headaches, depression, anxiety, inability to concentrate, attention deficit hyperactivity, shortness of breath, joint pain, sexual problems, memory loss and cancer.
  • According to the Environmental Contamination and Toxicology Institute, until a child is approximately 13 months old, they have virtually no ability to fight the biological and neurological effects of toxic chemicals. A child’s immune system is not fully developed until they are approximately 12 years old.
  • According to the Canadian Institute of Child health (published The Health of Canada’s Children 2000), Canadian children are exposed daily to a toxic soup of chemicals in their water, air and food, and that exposure may explain the dramatic rise in childhood cancers, asthma, sudden infant death syndrome and behavioral problems.
  • The chronic, low-level exposure to pesticides, smog, food additives and other chemicals could also create a host of public-health problems for coming generations, including limiting the ability of prospective parents to conceive.
  • The report states there has been a 25% increase rate of childhood caners in the past 25 years, all believed to be influenced by exposure to environmental contaminants. Asthma is now the leading cause of hospital admissions in Canada, and the most frequent trigger for an attack is air pollution.
  • The US National Cancer Institute states that “Child brain and nervous system cancers have increased 26% overall – in children under 5 years old, brain cancer rose 53% and leukemia is up 18%.”
  • Pollutants including lead, mercury, pesticides, PCB’s and dioxins can reduce intelligence and slow central nervous system development in fetuses.
  • A Canadian study conducted on hyperactivity disorder, among 20,000 children nationwide, found 11% of children have been diagnosed with the disorder, compared with less than 3%, 20 years ago. Some research has pegged the level among US children at 17%.
  • According to The Learning Disabilities Association of America, 12 million children under the age of 18 suffer from learning disabilities and behavior disorders such as hyperactivity and attention deficit disorder.
  • ADD/ADHD is epidemic in schools today. Behavioral problems have long been linked to exposure to toxic chemicals and mold. Use of Ritalin has skyrocketed since 1990.
  • Bristol University’s Children of the 90”s Project, conducted a study on 7000 pregnant mothers and followed their children to the age of 8. The team concluded that “children whose mothers made frequent use of chemical-based domestic products during pregnancy were more likely to wheeze persistently throughout early childhood, independent of many other factors.” Domestic chemicals included: disinfectant, bleach, aerosols, air fresheners, carpet cleaner, paint or varnish, white spirit, pesticide and paint stripper. The Bristol team suggested that the chemical formaldehyde could be the common factor.
  • Parents who keep a spotless house may be triggering an asthma attack. According to Australian researchers, who conducted a smaller sample study than Bristol, toddlers exposed to fumes from solvents and cleaning products at home are most at risk. Polishes, room fresheners and new carpets were some of the triggers. Children exposed to the highest levels of volatile organic compounds were 4 times more likely to have asthma. Benzene which is used to make rubbers, dyes and detergents, and is also a component of gasoline, has been linked to cancers.
  • Researchers from Brock University in St. Catherine’s, Ontario, tracked dozens of southern Ontario school kids aged 10 and 11, and found that athletic kids who get outside and engage in rigorous physical activity are generally healthier and get sick less often. Youngsters who don’t get outside much have higher incidences of upper respiratory tract infections.

VOLATILE ORGANIC COMPOUNDS – JUST CHEMICALS AND MORE CHEMICALS

  • The growth of synthetic chemicals after the 1950’s has been phenomenal. US production alone increases tenfold in each decade. By the 1980’s, 4 million new chemicals had been recorded, of which 60,000 were in common use, with around 1000 being added to this every year. Today there are about 72,000 synthetic chemicals being produced.
  • An average home now probably stores more chemicals than a chemistry lab at the turn of the century, about 62,000 chemicals – most of them in the kitchen and bathroom.
  • Less than 2% of synthetic chemicals have been tested for toxicity, mutagenic, carcinogenic or birth defects. The majority of chemicals have never been tested for long term effects.
  • The Center of Bio Environmental Research found that “of the 70,000 chemical compounds, only 25% have been tested – and they were tested individually, not in combination with other chemicals.” They also stated that “chemicals do not occur individually in our body, they occur in combinations.” “Tiny amounts of only 2 toxic chemicals at the same time are 1000 times more dangerous than 1 of them alone.”
  • The Hazardous Products Act requires that manufacturers list only certain volatile organic compounds in their products.
  • Labeling laws protect Big Business. They do not protect the consumer.
  • The New York Poison Control Centre reported that 85% of product warning labels were inadequate or incorrect for identifying a poison and for first aid instructions.
  • Pesticides only have to include active ingredients on the labels, even though the inert (inactive) ingredients may account for 99%, many of which are toxic and poisonous.
  • Material Safety Data Sheets (MSDS) must be available for any chemical product used in the workplace (in Canada). The air within a home is not considered a legal environment, whereas the air in the workplace and outdoors is.
  • Chemicals can evaporate right through a container that isn’t properly sealed.
  • Chemicals get into our body through inhalation, ingestion and absorption. According to the American Lung Association, we breathe in the vapors, airborne volatile organic compounds or VOC’s. Some products release contaminants into the air right away; others do so gradually over a long period of time. Some stay in the air up to a year.
  • Damage to organs caused by environmental chemicals frequently cannot be repaired or corrected once the injury has occurred. Prevention is therefore essential – Herbert L. Needleman, M.D. and Philip J. Landrigan, M.D., “Raising Children Toxic Free”.
  • Chemicals are attracted and stored in fatty tissues. The brain is a prime target for destruction due to its high fat content and very rich blood supply.
  • Chemicals become more active from higher temperatures. The ideal temperature within the home should be between 68° and 72°.
  • The Canada Mortgage & Housing Corp (CMHC) reports that houses are sealed so tight for energy efficiency that they cannot offgass chemicals. The chemicals have nowhere to go, so they build up within the home.
  • An Environmental Protection Agency EPA study stated the toxic chemicals in household cleaners are 3 times more likely to cause cancer than outdoor air. The EPA also conducted a 15 year study that showed American homes have chemical levels 70 times higher than outside. The number of chemicals used inside the home has more than doubled since 1950.
  • Since 1960, cancer rates have almost doubled. Cancer is the #1 cause of death for children. Since 1982, there has been a 26% increase in breast cancer. Breast cancer is the #1 cause of death for women between the ages of 35 and 54 years. Laundry detergents, household cleaners and pesticides are the primary suspects.
  • There has been a call from the US/Canadian Commission to ban bleach in North America. Bleach is being linked to the rising rates of breast cancer in women, reproductive problems in men, and learning and behavioral problems in children.
  • Research has found that women who work in the home are at a 54% higher risk of developing cancer than women who work outside the home.
  • In children, the risk of leukemia and brain tumours increases dramatically in households using home and garden pesticides, herbicides and insecticides.
  • Indoor air of an average Canadian home on a cleaning day can be hundreds, even thousands of times more contaminated than the outdoor air in the most polluted of cities.
  • Steam from dryer vents is considered extremely toxic, because of the chemicals from dryer sheets and residue from laundry soap and bleach.
  • Chemicals used to dry clean clothing are very dangerous and can cause cancer. Dry cleaned clothes should be hung outside for at least 3 days. Dry-cleaning chemicals are the same cancer causing chemicals that are found in mothballs.
  • Volatile Organic Compounds are off-gassed from new furniture, often lacquered with formaldehyde, particleboard paneling or shelving, stuffed furniture (often coated with a stain treatment) and even carpeting.
  • Volatile Organic Compounds are emitted from air fresheners, bleach products, household cleaning products, deodorizers, dishwashing detergents, disinfectants, dry cleaned clothing, fabric softeners, laundry detergents, furniture polishes, metal polishes, oven cleaners, glues, paints, solvents, mineral deposit removers, pesticides, garden chemicals, personal care products and more.
  • There are approximately 9000 Volatile Organic Compounds found in recently sprayed perfume – similar to numbers found in butane. Toluene, a chemical in almost all fragrances, is believed to trigger asthma attacks and other side effects.
  • Formaldehyde, phenol, benzene, toluene, xylene are found in common household cleaners, cosmetics, beverages, fabrics and cigarette smoke. These chemicals are cancer causing and toxic to the immune system.
  • Products containing formaldehyde can cause allergies, asthma, cancer and immune deficiency diseases.
  • Products such as “Lysol” contain phenols and dioxin (Agent Orange), which are dangerous chemicals. Lysol commercials in the past have show a mother spraying the baby’s diaper pail right in the infant’s diaper pail right in the infant’s bedroom. What a way to start a life!
  • In 1970, NTA’s were banned from use in products. However, in 1980, Proctor & Gamble lobbied to bring back the use of NTA’s. NTA’s cause the sudsing action. More suds mean less clean and more toxic danger. Studies conducted on toothpaste showed that the suds were the same suds found in laundry soap. This part really doesn’t apply to indoor air quality, but I thought you might want to read it.
  • The National Institute of Occupational Safety and Health has found more than 2500 chemicals in cosmetics that are toxic, cause tumors, reproductive complications, biological mutations and skin and eye irritations.
  • Fibromyalgia, chronic fatigue syndrome, arthritis, lupus, multiple sclerosis, circulatory disorders, Alzheimer’s, Parkinson’s disease, irritable bowel syndrome, depression and hormonal problems are diseases commonly related to chemical exposure.
  • Aerosols and air fresheners contain dozens of volatile organic compounds such as xylene, ketones and aldehydes. The University of Bristol found that pregnant women who used aerosols and air fresheners most days, suffered 25% more headaches than those who used them less than once a week. The frequent users also experienced a 19% increase in postnatal depression.
  • A study in Edinburgh found that babies under 6 months old who were exposed to air fresheners on most days, had 30% more ear infections than those exposed once a week, plus they had a 22% increase with diarrhea.
  • Use of aerosols can cause dizziness.
  • The use of aerosol cleaning products at least once a week can lead to asthma symptoms in adults. In an international study of 3500 men and women aged 20 to 44, the more often a person used the aerosol product, the more they experienced breathing difficulties.
  • Air fresheners contain deadly, poisonous chemicals. Would you consider opening the can and drinking the air freshener? You wouldn’t, so why would you want to breathe it? Read the label, they even tell you how poisonous the ingredients are. The poison that you spray in the air kills all of the receptors in the nose so that you cannot smell the offending odor anymore. So therefore, air fresheners don’t eliminate odors, they desensitize the nerves in your nose, so you cannot smell!
  • According to the American Lung Association, carpets emit volatile organic compounds, as do products that accompany carpet installation such as adhesives and padding. Symptoms include eye, nose and throat irritation, headaches, skin irritations, shortness of breath or cough, and fatigue. On the other hand, carpet can act as a sink for chemical and biological pollutants including pesticides, dust mites, and fungi. Carpets, drapes, bedding and stuffed animals are all dust magnets. A 6 year old pillow can get 1/10 of its weight from mites and mite droppings.

FLAME RETARDANTS IN YOUR HOUSEHOLD DUST AND FOOD SUPPLY CHAIN

  • Flame retardants have saved lives and property. However, flame retardant chemicals are quickly contaminating our bodies as they have made their way into our food supply, breast milk and are found throughout our homes in the form of dust.
  • Flame retardants are called PBDE’s or polybrominated diphenyl ethers, a class of about 25 industrial chemicals that are spayed on commercial goods to prevent or slow the rate at which they will ignite. There’s no escaping them. They’re in our sofas, beds, carpets, curtains, televisions, computers, cell phones and our household dust.
  • According to Barbara Thorpe of the Clean Production Action, consumers are unknowingly bathed in brominated flame retardants in their homes and outside. As these chemicals degrade, they leach out of the products they are sprayed on and turn into dust that sticks to surfaces. That dust is inhaled and accumulates in our bodies.
  • The US based National Institute of Standards and Technology (NIST) conducted a study of household grit, fluff and grime. They found that dust bunnies or rec-room tumbleweeds have high concentrations of the carcinogenic compound, PBDE’s. The researchers analyzed floor dust and dryer lint in 17 US homes and found PBDE’s in every sample. These researchers suggest that we may be inhaling trace amounts through loo
  • Professor Miriam Diamond, an environmental scientist at the University of Toronto, found that indoor air contains 10 to 20 times the levels of PBDE’s compared to outdoor air. She found that 2/3’s of adults’ body burden appears to be coming from dust. As for toddlers, who are low to the ground and in closer contact with the carpets/sofas and ground dust, 90% of their body levels are coming from house dust. Did anyone consider our pets – dogs/cats? They’re ingesting/inhaling it too!
  • Scientists are concerned because animal studies show that these chemicals build-up in our bodies and affect brain development, behavior and reproductive hormones
  • Studies have shown that flame retardants are chemically similar to cancer causing PCB’s, which were banned in the 1970’s.
  • Industry representatives/manufacturers say that the results of the animal studies don’t apply to humans. According to Peter O’Toole of the Bromine Science and Environmental Forum, a group that represents these manufacturers of flame retardants, “None of these flame retardants has ever shown a tangible effect to human health or the environment.”
  • According to Dr. Linda Bernbaum of the U.S. Environmental Protection Agency, about 5% of humans tested are showing levels scientists are considering worrisome.
  • An investigation conducted by the Canadian Television Network (CTV) and The Globe & Mail Newspaper, tested 12 common foods and found all to contain flame retardants – cheese, butter, eggs, milk, chocolate ice cream, pork chops, medium and extra lean ground beef, ground turkey, Ocean Pacific Salmon. The highest levels were in farmed Atlantic Salmon and farmed Rainbow Trout.
  • Scientists think flame retardants are ending up in our food through industrial sewage that becomes fertilizer for crops and animal feed.
  • Dr. Arnold Schecter, a University of Texas Health Science Center environmental sciences professor, conducted a study on the problem, and published it in the Environmental Health Perspectives. “When we tested blood from over 30 years ago, we could find no PBDE’s. Blood collected now has some of the highest levels ever found. Schecter tested breast milk samples from 47 Dallas and Austin women, and he found an alarmingly high amount of the chemical. “What it means for the health of nursing children and their mothers is unknown….. It is certainly undesirable to have these toxic chemicals in our food supply.”
  • Health Canada has been tracking PBDE levels for 8 years. Health Canada conducted a study from breast milk collected from Canadian mothers and found they contained the second highest levels of PBDE’s in the world, after the US. Health Canada also takes the stand that the levels of PBDE’s detected do not pose a risk to human health.
  • Environmentalists disagree. According to consumer advocate Beverly Thorpe of Clean Production Action, “Compared to Europe our levels are 10 to 100 times higher and they are doubling every two to five years. So we are facing a chemical crisis.”
  • Europe has taken steps to ban these most dangerous chemicals, yet similar action is not happening in Canada. European scientists rang the alarm on polybrominated diphenyl ethers a decade ago. Scientists in Sweden were the first to discover that flame retardants were unexpectedly migrating from products into the environment and into human breast milk. Two of the most toxic kinds of chemicals were phased out, first in Sweden, then in the rest of Europe.
  • European scientists have found a third formulation which degrades into the two forms that have already been banned. This flame retardant is called Deca-BDE, which is still widely used in products sold in North America.

ASBESTOS – ANOTHER FIRE RETARDANT

  • Asbestos is a mineral fiber that has been used in building materials for insulation and as a fire retardant. It is most commonly found in older homes, in pipe and furnace insulation materials, asbestos shingles, millboard, textured paints and other coating materials and floor tiles.
  • Asbestos can become airborne when disturbed by cutting, sanding or other remodeling activities. Improper attempts to remove these materials can release asbestos fibers into the air in homes.
  • The most dangerous asbestos fibers are too small to be visible. After they are inhaled, they can remain and accumulate in the lungs. Asbestos is known to cause lung cancer, mesothelioma and asbestosis. Symptoms of these diseases do not show up until many years after initial exposure.

RADON – ANY HOME CAN HAVE IT, WHETHER NEW, OLD, WELL-SEALED OR DRAFTY

  • The most common source of indoor radon is uranium in the soil or rock on which a home is build. As uranium naturally breaks down, it releases radon gas which is colorless, odorless and radioactive. Radon gas enters homes through dirt floors, cracks in concrete walls and floors, floor drains, and sumps. Radon can also be found in building materials.
  • Many major health organizations like the Centers for Disease Control and Prevention, the American Lung Association, and the American Medical Association agree that radon causes thousands of preventable lung cancer deaths each year.
  • The EPA estimates that radon causes about 14,000 deaths per year in the US, however, the number could range from 7,000 to 30,000 deaths per year.
  • Smokers are at a higher risk of developing radon-induced lung cancer.
  • Radon decay products, also called radon daughters or progeny, can be breathed into the lungs where they continue to release radiation as they further decay.
  • In 1991, a national US radon survey concluded that the average indoor radon level in a home is 1.2 picocuries per liter (p/Ci/L) while the average outdoor level is 0.4 pCi/L.

MOLD – VERY FEW HOMES LIVE WITHOUT IT

  • The ideal rate of humidity in the home is between 35% and 45%. Anything higher causes mold.
  • Mold growth is encouraged in the standing water of humidifiers or dehumidifiers, water damaged materials or wet surfaces. Contaminated central air handling systems can also become breeding grounds for mold, mildew and other sources of biological contaminants, and can then distribute these contaminants throughout the home.
  • Damp, moldy homes are becoming more of a problem, according to the Canada Mortgage & Housing Corp. Tighter homes make our indoor environments more prone to contamination by molds, spores, fungus and mildew. Tighter homes can keep moisture trapped. Use of more outside air for ventilation can also make a building mold-prone, if that outside air is moisture-laden. Sinks, toilets, tubs, soap dishes and floors are prime targets for mold. While some molds are benign, others are toxic. Mold can suppress the immune system. One can become immediately sensitized and develop allergies upon contact with large areas of mold growth.
  • Different species of mold have different potential health effects. Pathogenic molds are those that can cause disease in humans. Toxigenic molds are those that contain potent poisons (mycotoxins), usually on the surface of the spores. The spores of the pathogenic and toxigenic molds can be harmful even after the mold colony has stopped growing.
  • When spores are airborne or the fungal mass is disturbed, an occupant with pre-existing allergies to molds will react with running nose, eye and throat irritation, cough, etc. Prolonged exposure to mold in buildings may result in development of allergies in individuals who did not have allergies to mold before. Asthmatics are at risk of reacting to indoor mold with more frequent and severe attacks.
  • Symptoms associated with toxigenic molds include headache, sore throat, cough, skin rash, flu-like symptoms, nosebleeds, fatigue, fever, etc.
  • High exposures to stachybotrys chartarum have been implicated in several cases of infant deaths in homes.
  • Moldy materials remain allergenic, infectious, or toxic even after the surfaces have dried and further growth has stopped.

TOBACCO SMOKE

  • Environmental Tobacco Smoke (ETS) or “second-hand smoke” is the mixture of smoke that comes from the burning end of a cigarette, pipe or cigar and the smoke exhaled by the smoker. It contains more than 4700 chemicals including cyanides and carbon monoxide. More than 40 of these chemical compounds are known to cause cancer in humans or animals and many are strong eye, nose and throat irritants.
  • The chemicals linger past the burn, absorbed into drapes, linens, furniture and clothes.
  • According to a study conducted by the EPA in 1992, second-hand smoke is responsible for 3000 lung cancer deaths each year in non-smoking adults (in US).
  • Infants and young children who are exposed to tobacco smoke in the home have a higher risk of having lower respiratory tract infections (pneumonia and bronchitis) and are more likely to have symptoms of respiratory irritation like cough, excess phlegm, and wheeze. The EPA estimates that second hand smoke causes 150,000 to 300,000 lower respiratory tract infections in infants and children under 18 months of age, resulting in 7500-15,000 hospitalizations/year in the US. These children may also have a build-up of fluid in the middle ear, which leads to ear infections. Older children may have slightly reduced lung function. It can also cause non-asthmatic children to develop asthma.
  • The EPA estimates that between 200,000 and 1,000,000 asthmatic children have their condition made worse by exposure to second hand smoke each year.
  • According to Dr. Kenneth Chapman, director of the Asthma Centre of the Toronto Hospital, new smoking trends are fueling the rise in asthma. Although many people have kicked the habit in recent decades, we have actually been losing the war against smoking in young women of child-bearing age. Studies suggest that children and fetuses exposed to cigarette smoke are more likely to develop asthma.

COMBUSTION BY-PRODUCTS FROM STOVES, HEATERS, FIREPLACES AND CHIMNEYS

  • Unvented kerosene and gas space heaters, woodstoves, fireplaces and gas stoves can emit carbon monoxide, nitrogen dioxide and particles. Unvented kerosene heaters may also generate acid aerosols. Combustion gases and particles also come from chimneys and flues that are improperly installed or maintained and cracked furnace heat exchangers. Pollutants from fireplaces and woodstoves with no dedicated outdoor air supply can be “back-drafted” from the chimney into the living space, mostly in weatherized homes.
    Babies who live in wood burning homes tend to have more respiratory illness.
  • Particles from incompletely burned fuels, can lodge in the lungs and irritate or damage lung tissue. Many pollutants such as radon and benzoapyrene, which are cancer causing, attach to small particles that are inhaled and then carried deep into the lungs.

CANDLES – AND YOU THOUGHT THERE WAS A PROBLEM WITH YOUR HVAC SYSTEM

  • Both scientific and anecdotal evidence is mounting that the flames of candles, whether aromatic or unscented, release black soot into interior environments. They also can load the air with deep respirable particles that some compare to the particulate hazards of second-hand smoke.
  • Candle burning and smokeless oil lamps often leave a trail of ghost images and
    mysterious soot tracks on carpets, walls, ceilings and furniture.
  • Candles can vary in their soot generation, as some can produce 100 times more soot than other varieties. A candle placed in an air draft can increase its soot production by a factor of 50.
  • Soot production from certain candles can be significant and may cause indoor levels of airborne soot to exceed concentrations allowed in outside air by the Environmental Protection Agency.
  • Candle sales in the US have increased 400% in the past seven years, to approximately $2 billion. A significant portion of the growth is in the aromatic candle market, which now amounts to an estimated $750 million annually.

LEAD – THINK BEFORE RENOVATING AN OLDER HOME

  • The thrust for lead abatement in the US was primarily due to health concerns. It was recognized decades ago as a serious problem that affects children. (Research and documentation could fill a small library). In 1991, the Secretary of the Department of Health and Human Services called lead the “number one environmental threat to the health of children in the United States.”
  • Lead becomes airborne and enters the body when lead-based paint is removed by dry scraping, sanding or open flame burning. Airborne lead dust can also enter the home from outdoor sources including contaminated soil tracked inside, and use of lead in certain indoor activities like soldering and stained-glass making.
  • At low levels, lead can affect the brain, central nervous system, blood cells and kidneys. At high levels, it can cause convulsions, coma and even death.
  • The effects of lead exposure on fetuses and young children includes delays in physical and mental development, lower IQ levels, shortened attention spans, and increased behavioral problems. Fetuses, infants and children are more vulnerable to lead exposure than adults since lead is more easily absorbed into growing bodies and their tissues are more sensitive to lead’s damaging effects. Children also tend to get lead dust on their hands and put their fingers in their mouths.
  • The young and the poor are more likely to get lead poisoning, as they have the least amount of protection. The older buildings that contain lead paint are usually inhabited by lower income families. Child occupants (especially those under the age of ten) are at the greatest risk, and are the most adversely affected by lead poisoning. In many municipalities, the demolition of buildings is allowed with now site assessment for hazardous materials.
  • A US federal regulation requires real estate agents and owners of dwellings built before 1978, to disclose the property’s lead history and the health hazards related to lead.
  • A rough gauge of how low a priority lead is in Canada, is reflected in the fact that Deleading magazine, the official publication of the US National Lead Abatement Council, is circulated to 8000+ readers per month in the United States, but less than twelve issues are sent to Canada.

HOUSEHOLD PETS – MAN’S BEST FRIENDS

  • A study conducted in East & West Germany, by Dr. Erika von Mutius of the University Children’s Hospital in Munich, found that childhood asthma rates were very few for children living in a heavily polluted city of the former Communist block, than in a relatively cleaner city of the West.
  • House pets, especially cats are major culprits to initiate asthma and allergy attacks. Cats have grown in popularity among urban dwellers, displacing dogs as man’s (or woman’s) best friend. There are now 66 million cats in US households, compared with 53 million dogs. The market for pet care is a $34 billion industry in the US.
  • In Canada, the pet population is dominated by dogs and cats whose number reached over 10 million in 2004. Large dogs account for 2.3 million of the pet population. Research shows that 28.5% of households own at least one dog and 37.5% own a cat. A significant number owns both. According to Euromonitor International, pet food and pet care products will reach $2.2 billion by 2009 in Canada.
  • Dr. Meyer Balter, director of the asthma education clinic at Mount Sinai Hospital in Toronto, has stated that an amazing amount of his patients sleep with a pet sitting on their face.
  • Asthmatics don’t even need to live with a cat to suffer its ill effects, notes Dr. Malcolm Sears, a professor of medicine at McMaster University in Hamilton, Ontario. Cat dander easily clings to the clothing of cat owners, who can then spread it to other homes as well as offices and classrooms.

OUTDOOR AIR

  • 5900 Canadians die annually from air pollution – the brownish or yellowish haze most evident on warm sunny days – according to a new study from Health Canada. Damaging fine particles of smog can be inhaled deeply into the lungs. The most vulnerable are kids, because their lungs are still developing and they breath in more air than adults; the elderly because of the compromised immune systems; asthmatics and others with lung disease’ and anyone with heart problems.
  • According to the Ontario Medical Association’s report, “The Illness Costs of Air Pollution in Ontario” (2000), smog causes 1920 deaths per year, 9800 hospital admissions, 13,000 emergency room visits, 47 million lost work days. Approximate conservative cost estimate to the Ontario economy is $1 billion.
  • As many as 5 million tons of latex particles wear off tires in the United States each year. The Denver Allergy Institute discovered that tiny black particles flake off from tires and are thrown into the air by motorists. The latex particles have been increasingly associated with many medical conditions such as asthma, skin rashes, etc. The heightened irritation might explain why asthma has become increasingly prevalent and severe since the use of radial tires, which flake off in smaller, more readily inhaled particles than previous tires.

ALLERGIES, ASTHMA & RESPIRATORY ILLNESS

  • Poor air worsens conditions for those with allergies, asthma, lung disease and chronic infections. Studies have shown that pollution doesn’t actually cause asthma. It just makes a bad situation worse. People exposed to a lot of outdoor air pollution are more likely to suffer from other lung ailments, such as chronic bronchitis. True asthma initiators, which provoke an inflammatory condition in the lungs, tend to be some of same things that trigger allergies. And these allergens can be found indoors – at home and work.
  • Lung disease claims close to 335,000 lives in America every year and is the third leading cause of death in the United States.
  • Six million Canadians – one in 5 – have some form of respiratory illness.
  • According to Asthma Society of Canada …. Asthma kills 500 Canadians every year.
  • As many as 1 in 5 children have been diagnosed with asthma.
  • According to Statistics Canada, National Population Health Survey 1998-1999, 12% of children and 8% of adults have asthma, which is approximately 2.5 million Canadians.
  • More women than men have asthma – 8.5% of Canadian women, compared to 7.2% men. Women’s symptoms develop later in life.
  • Almost twice as many women as men die from asthma, according to Statistics Canada.
  • Asthma can start at any age. Boys usually start wheezing on the playground, while girls are more likely to come down with their first symptoms in their teens or early 20’s.
  • According to a Canadian study published in the journal Chest in June 2007, giving antibiotics to infants is associated with the development of childhood asthma. Anita Kozyrsyj, lead author and associate professor at the University of Manitoba’s faculties of medicine and pharmacy, drew the link between antibiotic use in the first year of life and asthma by age 7. Her team found that a child’s chances of getting asthma increased depending on the amount and type of antibiotics a child was given. The risk of asthma at age 7 was increased 1 ½ times in children who had received more than four rounds of antibiotics.
  • Nurses are twice as likely as the general population to develop occupational asthma, according to researchers in Spain. Nurses are exposed to sensitizing substances, respiratory allergens, and irritants including sterilizers and disinfectants.
  • Other at-risk occupations for developing asthma include printing, woodworking, agriculture/forestry, and cleaning. Also, if a specific incident in an individual’s life has exposed them to asthma-causing irritants, such as a fire or chemical spill, that person will be three times more likely to develop asthma.
  • Only 25-40% of asthmatics ever get diagnosed.
  • Up to 70% of asthmatics also suffer from allergies, which can play a role in bringing on their symptoms.
  • Since 1980, asthma has increased by 600%. The Canadian Lung Association has identified common household cleaners and cosmetics as triggers.

PRESCRIPTION & NON-PRESCRIPTION DRUGS

  • According to Fortune Magazine, we are losing the war on cancer. The percentage of Americans dying of cancer today is the same as it was in 1970 and even 1950. Over $200 billion has been spent since 1971 trying to prevent and cure cancer. Yet today there is a higher chance of getting cancer than ever before in history, and you have the same chance of dying as you did in 1950.
  • Americans spend over $2 trillion a year on healthcare, yet infant mortality is higher than 20 other developed countries. People in 30 other countries live longer than Americans, but Americans consume over half of all the drugs manufactured in the world.
  • There are over 200,000 non-prescription drugs on the market and over 30,000 prescription medications. Doctors write over 3 billion prescriptions per year.
  • The average American has over 30 different prescription and non-prescription drugs stored in their medicine cabinet.
  • GlaxoSmithKline is the world’s largest producer of steroid puffers.
  • Consumer choice for the asthma and allergy patient is basically steroids and more steroids, from mint flavored syrups, to antibiotics, shots, creams and puffers.
  • Pfizer is the world’s largest pharmaceutical corporation, and also the world’s second largest corporation.
  • According to J. Robinson, Prescription Games: Money, Ego and Power Inside the Global Pharmaceutical Industry: A CEO of a pharmaceutical giant observed in a shareholder’s meeting that “profits can only be harvested from chronic disease.”

Posted by Wes Diskin – Content from 4Seasons

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