Quality of Our Indoor Air Depends on What's Outside

Article excerpt

Byline: Mick Zawislak Daily Herald Staff Writer

The quality of air inside your home and workplace is important, since you spend about 90 percent of your time inside.

The Centers for Disease Control in Atlanta has classified indoor pollution as a factor with the potential for high environmental risk, according to the American College of Allergy, Asthma & Immunology in Arlington Heights.

The air inside our homes depends in part on what's outside, as indoor concentrations of pollutants such as ozone or carbon monoxide and other minute particles range from between 20 to 80 percent of outdoor concentrations.

The condition of the air we breathe has become an issue for environmentalists. A report released last week by the American Lung Association, gave Cook, Lake and McHenry counties a F grade for the smog levels.

Between 1997 and 1999, Cook reported 24 days during which smog rose to levels unhealthy for those sensitive to the air quality. …