Air pollution in Pima County is clouding our future. It affects our quality of life in many ways. We can't escape it - we breathe it every day. Air pollution affects everyone. It is especially harmful to the very young and old, and those with lung diseases.
Laws are in place to protect our health from major air pollutants.
Pima County has violated the health standards for all three of these pollutants in the past. Other pollutants of concern are nitrogen oxides and volatile organic compounds. These pollutants help produce ground-level ozone. An index of weekday pollution levels can be found in the weather section of the local newspapers. The more miles we drive, the more air pollution we produce.