Non-attainment definition

Non-attainment means that the quality of the ambient air, as measured by the commissioner, fails to meet any Ambient Air Quality Standard for a given pollutant for which such standards have been established by the United States Environmental Protection Agency.
Non-attainment means that the quality of the ambient air, as measured by the
Non-attainment means a geographic area in which the level of certain air pollutants is higher than national air quality standards

More Definitions of Non-attainment

Non-attainment means an area considered to have air quality that does not meet the National Ambient Air Quality Standards as defined in the Clean Air Act.