The U.S. Surgeon General's Office, the Centers for Disease Control (CDC), the Department of Housing and Urban Development (HUD), and other federal agencies are coming together to try and help raise awareness on the health effects of poor indoor air quality within the home.
In conjunction with this, acting Surgeon General Steven K. Galson recently released a report titled "The Surgeon General's Call to Action to Promote Healthy Homes". Galson told the media that the purpose of the report was to promote discussions about the importance of healthy homes.
He stated that "We can prevent many diseases and injuries that result from health hazards in the home by following the simple steps outlined in this Call to Action."
The report addresses many indoor contaminants, including mold. It includes many suggestions to improve the air quality in your home such as prohibiting smoking and eliminating exposure to second hand smoke, installing carbon monoxide and radon detection devices, and controlling moisture and water intrusion to reduce the potential for mold growth.
The full text of the report can be read on the Surgeon General's information website at: http://www.surgeongeneral.gov/topics/healthyhomes/calltoactiontopromotehealthyhomes.pdf
Air Matters has performed mold inspection and testing services in the Raleigh NC area since 2002. The owner, Renee Ward, has over 22 years of safety and environmental experience and holds both her Bachelor of Science and Masters degrees in engineering. Renee is also a member of the American Industrial Hygiene Association and the American Indoor Air Quality Council. Contact Air Matters at (919) 870-6748.
Wednesday, July 29, 2009
Wednesday, July 15, 2009
Should You Have the Air Ducts in Your Home Cleaned?
Summer in North Carolina means two things: heat and humidity. Maybe the air conditioner in your home has not been able to keep up, so you call your regular HVAC servicing company. One of the things they might suggest is having your duct work cleaned to remove dust and mold spores and improve the air flow into your home. Is this really necessary?
Despite the claims of many companies that perform duct cleaning, it has never been proven to have any substantial health benefits. Addressing the other pollutants in your home such as cooking, cleaning products, smoking, or pets can often have a more immediate impact on the air quality inside your home.
What if the service provider tells you that your ductwork or your HVAC system is contaminated with mold?
Always ask to see it. Many areas within the HVAC system or ducts are not easily accessible. Even if you see a substance that you suspect is mold, remember that positively identifying mold requires testing and laboratory analysis. Mold on hard non-porous surfaces (such as sheet metal) can be cleaned, while contaminated insulation or other such materials will need to be replaced.
However, there are times when duct cleaning may be beneficial. You should consider having your air ducts professionally cleaned if:
If you determine that having the air ducts in your home cleaned is necessary, here are some tips from the Environmental Protection Agency on selecting a service provider :
Finally, remember that the best way to avoid needing to have the air ducts in your home cleaned is to prevent dirt and water from entering your heating and cooling system.
Air Matters has performed mold inspection and testing services in the Raleigh NC area since 2002. The owner, Renee Ward, has over 22 years of safety and environmental experience and holds both her Bachelor of Science and Masters degrees in engineering. Renee is also a member of the American Industrial Hygiene Association and the American Indoor Air Quality Council. Contact Air Matters at (919) 870-6748.
Despite the claims of many companies that perform duct cleaning, it has never been proven to have any substantial health benefits. Addressing the other pollutants in your home such as cooking, cleaning products, smoking, or pets can often have a more immediate impact on the air quality inside your home.
What if the service provider tells you that your ductwork or your HVAC system is contaminated with mold?
Always ask to see it. Many areas within the HVAC system or ducts are not easily accessible. Even if you see a substance that you suspect is mold, remember that positively identifying mold requires testing and laboratory analysis. Mold on hard non-porous surfaces (such as sheet metal) can be cleaned, while contaminated insulation or other such materials will need to be replaced.
However, there are times when duct cleaning may be beneficial. You should consider having your air ducts professionally cleaned if:
- you can see large accumulations of suspected (or confirmed) mold growth
- there is an infestation of rodents or insects evident inside the ductwork
- visible discharge is emitted from your air supply vents when the system is running
If you determine that having the air ducts in your home cleaned is necessary, here are some tips from the Environmental Protection Agency on selecting a service provider :
- Do not hire duct cleaners who make sweeping claims about the health benefits of duct cleaning -- such claims are unsubstantiated. Do not hire duct cleaners who recommend duct cleaning as a routine part of your heating and cooling system maintenance. You should also be wary of duct cleaners who claim to be certified by EPA. EPA neither establishes duct cleaning standards nor certifies, endorses, or approves duct cleaning companies.
- Do not allow the use of chemical biocides or chemical treatments unless you fully understand the pros and the cons of the products being used.
- Check references to be sure other customers were satisfied and did not experience any problems with their heating and cooling system after cleaning.
- Contact your county or city office of consumer affairs or local Better Business Bureau to determine if complaints have been lodged against any of the companies you are considering.
- Interview potential service providers to ensurethat they are experienced in duct cleaning and have worked on systems like yours; they will use procedures to protect you, your pets, and your home from contamination; and they comply with the National Air Duct Cleaning Association's air duct cleaning standards.
- Ask the service provider whether they hold any relevant state licenses. The following states require air duct cleaners to hold special licenses: Arizona, Arkansas, California, Florida, Georgia, Michigan and Texas. Other states may soon require them as well.
- If the service provider charges by the hour, request an estimate of the number of hours or days the job will take, and find out whether there will be interruptions in the work. Make sure the duct cleaner you choose will provide a written agreement outlining the total cost and scope of the job before work begins.
Finally, remember that the best way to avoid needing to have the air ducts in your home cleaned is to prevent dirt and water from entering your heating and cooling system.
Air Matters has performed mold inspection and testing services in the Raleigh NC area since 2002. The owner, Renee Ward, has over 22 years of safety and environmental experience and holds both her Bachelor of Science and Masters degrees in engineering. Renee is also a member of the American Industrial Hygiene Association and the American Indoor Air Quality Council. Contact Air Matters at (919) 870-6748.
Tuesday, May 19, 2009
What You Should Know About Common Sources of Indoor Moisture
The key to controlling mold growth inside the home is to eliminate or control common sources of indoor moisture. Mold cannot grow without the proper level of moisture. Suggested ways to control common sources of indoor moisture include:
General
- Clean up all water or liquid spills immediately- Use air conditioning to lower indoor humidity levels
- Operate ceiling fans to increase ventilation and airflow
- Keep gutters clean, in good repair, and directed away from the foundation
- Ensure flashing is properly installed around doors and windows
- Replace damaged or rotting siding, window frames, or door frames
Laundry Room
- Vent the clothes dryer to the outside
- Install an overflow pan under the washing machine
- Inspect washing machine hoses and fittings periodically
Kitchen
- Exhaust moisture from cooking or dishwashing to the outside
- Ensure there are no leaks in faucets, sprayers, etc.
- Inspect dishwasher, icemaker, or other hidden water lines periodically
Bathrooms
- Exhaust moisture from bathing and showering to the outside
- Use shower curtains or doors to minimize water on the floors or walls
- Install an overflow pan under the tub or shower drain area
- Ensure caulking and grout is sealed and maintained in good condition
Air Matters has performed mold inspection and testing services in the Raleigh NC area since 2002. The owner, Renee Ward, has over 22 years of safety and environmental experience and holds both her Bachelor of Science and Masters degrees in engineering. Renee is also a member of the American Industrial Hygiene Association and the American Indoor Air Quality Council. Contact Air Matters at (919) 870-6748.
Thursday, May 14, 2009
What You Should Know About Mold
What is mold?
Molds (and mildew) are forms of fungi that are found everywhere – inside and outside. Fungi are necessary for recycling organic material, which is required to sustain plant and animal life. There are more than 100,000 types of mold. These species can be any color, including white, orange, green, brown or black. The most common indoor molds are Cladosporium, Penicillium, Aspergillus, and Alternaria. Fewer than 200 species of molds have been classified as human pathogens that can cause infections.
How does mold get inside my house?
Many molds grow naturally in the indoor environment. Mold spores may enter your house through open doorways, windows, or HVAC systems. Spores may attach themselves to family members, pets, clothing, shoes, or bags and be brought indoors.
How does mold grow?
Mold reproduces by releasing tiny spores. These spores settle on surrounding surfaces, and begin to grow in favorable conditions. Growth requires three things: moisture, an organic food source (examples include carpet, sheetrock, wallpaper, paint, upholstery, wood, leather, or even dust) and a suitable temperature between 40-100 degrees Fahrenheit. It is important to note that mold does not need light to grow. When one of the three conditions becomes unsatisfactory, the mold becomes dormant. It can resume activity when the conditions are restored to favorable.
What is the “killer mold” or “black mold” I have heard about?
Sensationalized media reports refer to a specific type of mold called Stachybotrys that has been nicknamed the “killer mold” or “black mold”. It is less common than other mold species. There are only a few molds that are truly black, although many can appear black. Not all mold that appears to be black is Stachybotrys. This specific type of mold grows on cellulose materials, such as paper, cardboard, sheetrock, or framing. It requires a very high, constant moisture level to grow, which usually occurs after something has been wet for several weeks. Stachybotrys can release potentially toxic substances called mycotoxins, which cling to the mold spores. The health effects of these toxins are unproven and are currently being studied.
Molds (and mildew) are forms of fungi that are found everywhere – inside and outside. Fungi are necessary for recycling organic material, which is required to sustain plant and animal life. There are more than 100,000 types of mold. These species can be any color, including white, orange, green, brown or black. The most common indoor molds are Cladosporium, Penicillium, Aspergillus, and Alternaria. Fewer than 200 species of molds have been classified as human pathogens that can cause infections.
How does mold get inside my house?
Many molds grow naturally in the indoor environment. Mold spores may enter your house through open doorways, windows, or HVAC systems. Spores may attach themselves to family members, pets, clothing, shoes, or bags and be brought indoors.
How does mold grow?
Mold reproduces by releasing tiny spores. These spores settle on surrounding surfaces, and begin to grow in favorable conditions. Growth requires three things: moisture, an organic food source (examples include carpet, sheetrock, wallpaper, paint, upholstery, wood, leather, or even dust) and a suitable temperature between 40-100 degrees Fahrenheit. It is important to note that mold does not need light to grow. When one of the three conditions becomes unsatisfactory, the mold becomes dormant. It can resume activity when the conditions are restored to favorable.
What is the “killer mold” or “black mold” I have heard about?
Sensationalized media reports refer to a specific type of mold called Stachybotrys that has been nicknamed the “killer mold” or “black mold”. It is less common than other mold species. There are only a few molds that are truly black, although many can appear black. Not all mold that appears to be black is Stachybotrys. This specific type of mold grows on cellulose materials, such as paper, cardboard, sheetrock, or framing. It requires a very high, constant moisture level to grow, which usually occurs after something has been wet for several weeks. Stachybotrys can release potentially toxic substances called mycotoxins, which cling to the mold spores. The health effects of these toxins are unproven and are currently being studied.
How do I know if I have mold?
In many cases, visible mold growth will allow you to confirm the presence of mold in your home. Mold may also be hidden on the backside of sheetrock or wallpaper, the underside of carpet and padding, inside ductwork, or around pipes. Musty, moldy odors may also be an indication of hidden mold. Investigating hidden mold usually requires disturbing the mold growth site. This can lead to a massive release of mold spores, so you should consider hiring a professional if you suspect you might have hidden mold.
How do I get rid of mold?
Beware of companies who claim they can totally eliminate mold from your home. More than 1,000 different kinds of indoor molds have been found in US homes, and it is impossible to get rid of all the mold in your home. The concern is around the growth of mold spores, and they will not be able to grow and create problems unless moisture is present. The key to controlling indoor mold growth is to control moisture.
What are some examples of ways I can control moisture?
Act quickly to correct water leaks or spills. In most cases, it takes 24-48 hours before mold begins to grow.
Vent your clothes dryer to the outside.
Use exhaust fans when showering, cooking, running the dishwasher, etc.
Increase air movement with fans.
Use air conditioners during humid weather.
Install proper exterior wall insulation.
Make sure the ground slopes away from the foundation of your house.
Clean and repair your roof gutters regularly.
Keep air conditioning drip pans clean and drain lines unobstructed.
Does mold make you sick?
Molds do have the potential to cause health problems, although most people have no reaction to molds. Molds can produce allergens, irritants, and in some cases potentially toxic substances called mycotoxins. Allergic reactions to mold are most common. Common symptoms may include sneezing, runny nose, wheezing, red eyes, or mild skin irritation. Like other types of allergies, different people will react differently to the same mold exposure. Certain groups of people who may be bothered more include infants or small children, elderly people, pregnant women, individuals with respiratory conditions or allergies and asthma, and people with weakened immune systems. Since the health effects of mold remain largely unproven, steps should be taken to remove mold and control any sources of moisture.
Air Matters has performed mold inspection and testing services in the Raleigh NC area since 2002. The owner, Renee Ward, has over 22 years of safety and environmental experience and holds both her Bachelor of Science and Masters degrees in engineering. Renee is also a member of the American Industrial Hygiene Association and the American Indoor Air Quality Council. Contact Air Matters at (919) 870-6748.
Gutter Problems Contribute to Mold Issues
In the May 11th article from Consumer Reports titled Home Repairs not to Ignore, there are several points regarding moisture and how it can lead to expensive problems with mold growth. "If there are 10 things that can go wrong with a house, 15 of them have to do with water, says Bill Loden, a Madison, Ala., home inspector." The article goes on to provide several useful tips for homeowners including:
Air Matters often sees gutter and landscaping issues such as these contributing to excess moisture in the crawlspace or basement of a home. Remember that in order to control the mold, you have to eliminate the moisture.
Air Matters has performed mold inspection and testing services in the Raleigh NC area since 2002. The owner, Renee Ward, has over 22 years of safety and environmental experience and holds both her Bachelor of Science and Masters degrees in engineering. Renee is also a member of the American Industrial Hygiene Association and the American Indoor Air Quality Council. Contact Air Matters at (919) 870-6748.
- Gutters, downspouts, and leader pipes collect rainwater and channel it away from the house. In very wet regions, leaders should extend at least 5 feet from the house.
- Check the entire gutter system seasonally for proper pitch and for clogs, corrosion, broken fasteners, and separation between connections and where gutters meet the fascia board.
- When inspecting gutters, extend straight ladders 3 feet beyond the roof at a 75 degree angle to the ground.
- The soil around the foundation should slope away from the house at least 1 inch per foot for 6 feet or more.
- If you have planting beds along the foundation, make sure the grading of the bed, its edging, or the edge of the lawn isn't keeping water from draining away from the house.
Air Matters often sees gutter and landscaping issues such as these contributing to excess moisture in the crawlspace or basement of a home. Remember that in order to control the mold, you have to eliminate the moisture.
Air Matters has performed mold inspection and testing services in the Raleigh NC area since 2002. The owner, Renee Ward, has over 22 years of safety and environmental experience and holds both her Bachelor of Science and Masters degrees in engineering. Renee is also a member of the American Industrial Hygiene Association and the American Indoor Air Quality Council. Contact Air Matters at (919) 870-6748.
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