Carpets

How can carpeting impact health?

Carpets may trap pollutants like dust mites, pet dander, cockroach allergens , particle pollution, lead, mold spores, pesticides, dirt and dust. Toxic gases in the air can adhere to small particles that settle into carpets.1 These pollutants may become airborne when disturbed by renovations, vacuuming or even daily activities like walking across the carpet.  In the home, children are more likely to be exposed to pollution in carpets. They spend time playing on the floor and place their hands in their mouths.  If a large area is covered in carpet, it may be very difficult to remove indoor air pollutants and allergens.2

Chemicals used in some new carpets, carpet pads and the adhesives used to install them can harm your health. Some of these chemicals and glues are made with volatile organic compounds (VOCs), which emit odors and pollutants.3 New carpet installation also has been associated with wheezing and coughing in babies in their first year of life.3

How can indoor air contamination from carpets be avoided?

Instead of carpets, chose hard-surfaced flooring and rugs that can be removed and cleaned outside.  If this is not possible, vacuum at least three times a week with a High Efficiency Particulate Air (HEPA) filter.2 However, vacuuming may disturb settled particles, causing more pollution to become airborne. Kitchens, bathrooms and entry ways should always be carpet free because they are frequently damp, providing a good environment for mold.

As with any building product, if purchasing new carpet, choose a carpet that releases fewer VOC emissions.  Request that the carpet be unrolled and aired out in a well-ventilated area (a clean, dry warehouse, for example) for 72 hours before installation.  If possible, have carpet installed while the space is unoccupied. Then allow 72 hours of ventilation before inhabiting the space.  Make sure the carpet can be removed later without use of toxic chemicals.1

Citations

  1. U.S. Environmental Protection Agency (EPA). Indoor Air Quality Tools for Schools: Controlling Pollutants and Sources.  Accessed February 24, 2010.
  2. Institute of Medicine, Division of Health Promotion, Indoor Air and Disease Prevention. Clearing the Air: Asthma and Indoor Air Exposures. National Academies Press. Washington, DC. 2000.
  3. California Air Resources Board (CARB).  Report to the California Legislature: Indoor Air Pollution in California. Sacramento, CA: California Environmental Protection Agency. 2005.
  4. EPA.  An Introduction to Indoor Air Quality: Volatile Organic Compounds. Accessed November 14, 2010.