In Prince George’s County and the Washington, D.C. metropolitan area, the 2 most important pollutants that threaten human health are ground-level ozone and particle pollution. If you are a typical adult, you'll breathe in close to 3,500 gallons of air in a single day. If your atmosphere is polluted with ozone and particle pollution, you may see your lung function reduced by as much as 20%.
The Air Quality Index (AQI) is an index used for reporting forecasted and daily air quality. The AQI uses both a color-coded and numerical scale to report how clean or polluted the air is and what associated health effects might be of concern.
As a participant in Clean Air Partners, the county receives daily forecasts of regional air quality, the county the helps notify citizens and employees when unhealthy air quality is expected through AirAlerts.
The county’s air quality procedure is standard operating procedures that outline the actions that must be taken by various county agencies whenever a code red or code yellow air quality alert is issued by Clean Air Partners.
The Environmental Protection Agency (EPA) has set National Ambient Air Quality Standards (NAAQS) for six principal pollutants, which include ozone, particulate matter, carbon monoxide, sulfur oxides, nitrogen oxides and lead.