Wall-to-wall carpeting has improved significantly in the past few years, however it can nonetheless be a substantial supply of indoor air pollutants. You will find three types of pollutants related to carpeting: 1) offgassing of VOCs in the carpet itself, in the carpet pad (or cushion), and in the adhesives accustomed to glue it towards the subfloor; 2) biological contaminants that can live in carpeting; and 3) pollutants tracked in from outdoors that can become trapped in carpet and later affect occupants.
Offgassing of VOCs from carpeting has dropped significantly because the 1980s and early '90s, when carpeting was implicated in several highly publicized “sick building syndrome” problems, including in the US Epa headquarters in Washington, D.C.
In 1992, carpeting and Rug Institute (CRI) established a testing and labeling program setting limits on VOC and formaldehyde emissions from carpeting. This Green Label standard was strengthened in 1994, and in 2004 saving money Label Plus program premiered, offering yet a greater standard of indoor quality of air.
Most carpeting today carries a minimum of the CRI Green Label. Green Label and Green Label Plus designations can also be found for carpet pads and carpet adhesives. It is best to search for these labels, but realize that not every carpet manufacturers are members of CRI and that only member companies may use the CRI label.
Natural-fiber carpets produced from wool, cotton, along with other textile fibers have low offgassing and also have always been available, but sometimes be significantly more expensive than synthetic carpets. Also, many natural-fiber carpets contain chemicals to kill moths or another organisms that the carpeting might be a meal source.
Generally of greater concern compared to VOC emissions from carpeting may be the chance of biological contaminants and toxins tracked in from outdoors. Under high-humidity conditions or where spills occur, carpeting may support mold growth or dustmites. At least, avoid carpeting in a basement that might be damp or vulnerable to spills, and in kitchens and bathrooms.
Pollutants from outdoors may also be trapped in carpeting, including pesticides, chemical toxins (e.g. lead from paint that has chipped from the beyond houses through the years), hydrocarbon residues, and so on. At entryways, install trackoff mats that capture moisture along with a number of contaminants that would certainly be tracked to the house; mats should be removable for simple cleaning.
Froman indoor quality of air standpoint, itmakes sense tominimize using wallto- wall carpeting in houses and steer clear of it altogether in entranceways. In host to carpeting, use solidsurface flooring with rugs in which a softer surface is required.
If wall-to-wall carpeting can't be avoided, search for carpeting that carries the CRI Green Label Plus. With products not manufactured by CRI member companies or otherwise carrying saving money Label Plus, ask themanufacturer for test data on VOC emissions fromthe carpeting.
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Note: This article was sent to us by: Larry Edwards at 04202011
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