Indoor Air Pollutants
- Carbon monoxide – An odorless, colorless gas produced by appliances or
heaters that burn natural gas, oil, wood, propane, or kerosene. A major
component of car exhaust.
- Environmental tobacco smoke (ETS) is composed of more than 3,800
different chemical compounds.
- Radon – An odorless, colorless radioactive gas that comes from the
natural breakdown of uranium in rock and soil. It can seep into homes
through cracks in the foundation, floors, walls. Can be found in water.
- Molds – Require moisture to grow and tend to be found in damp basements,
refrigerators, air conditioners, humidifiers, mattresses, carpeting, under
ceiling panels, or behind walls (if there are chronic water leaks).
- Solvents – Household cleaners, degreasers, arts and craft supplies,
glues, “off-gassing” from newly installed carpets, flooring, particle board,
- Pesticides – Residues of some pesticides volatilize after application,
and may concentrate at floor level. (See the section on
pesticides for more