Criteria Air Pollutant
Criteria Air Pollutant :
An air pollutant for which acceptable levels of exposure can be determined and for which an ambient air quality standard has been set. Examples include: ozone, carbon monoxide, nitrogen dioxide, sulfur dioxide, PM10 and PM2.5. The term "criteria air pollutants" derives from the requirement that the US EPA must describe the characteristics and potential health and welfare effects of these pollutants. The US EPA and ARB periodically review new scientific data and may propose revisions to the standards as a result. View our health and air pollution website
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