In the United States, the Clean Air Act sets national ambient air quality standards for six common air pollutants: particle pollution
In the United States, the Clean Air Act sets national ambient air quality standards for six common air pollutants: particle pollution (also known as particulate matter), ground-level ozone (O3), carbon monoxide (CO), sulfur oxides (SOx), nitrogen oxides (NOx), and lead (Pb). Read about each of these, their common sources, and the Air Quality Index (AQI) […]