Most Common Pollution Sources

Indoor pollution sources that release gas or particles into the air are the primary cause of indoor air quality. Some causes to indoor air pollution is inadequate ventilation by not allowing in enough outdoor air to dilute emissions or by not carrying enough indoor air pollutants out.

Indoor pollution sources include oil, gas, tobacco products, building materials, asbestos-containing insulation, cabinetry or furniture made of certain pressed wood products or household cleaning products. Outdoor pollution sources include pesticides and outdoor air pollution. Some of these sources like building materials or household products, such as air fresheners, release pollutants almost continuously. Sources related to activities carried out in the home release pollutants intermittently. Most common are smoking, the use of unvented stoves or space heaters and the use of household cleaning products. Many of these products with high pollutant concentrations can remain in the air for long periods of time after the activity is complete.