Index of six x4/11/2023 It uses a normalized scale from 0 to 500: the higher the AQI value, the greater the level of pollution and the greater the health concern. The AQI focuses on health effects that may be experienced within hours or days after exposure to polluted air. The AQI informs the public about air quality in the area, tells who may be affected, and provides steps to take to reduce exposure when pollution levels are unhealthy. ![]() ![]() The AQI reports the most common ambient air pollutants that are regulated under the Clean Air Act, including ozone and particle pollution (PM 10 and PM 2.5). The AQI is a nationally uniform color-coded index developed by EPA for reporting and forecasting daily air quality. use the Air Quality Index (AQI) to communicate about air quality. ![]() This section of the course covers the following topics:Īir agencies across the U.S.
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