Attainment Area 5
Attainment Area 5 : An area that the Environmental Protection Agency has designated as being in compliance with one or more of the National Ambient Air Quality Standards (NAAQS) for sulfur dioxide, nitrogen dioxide, carbon monoxide, ozone, lead, and particulate matter. An area may be in attainment for some pollutants but not for others. See: National Ambient Air Quality Standards (NAAQS), nonattainment area, and particulate matter
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