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  2. National Ambient Air Quality Standards - Wikipedia

    en.wikipedia.org/wiki/National_Ambient_Air...

    The Clean Air Act requires the EPA to set US National Ambient Air Quality Standards (NAAQS) for the six CAPs. [6] The NAAQS are health based and the EPA sets two types of standards: primary and secondary. The primary standards are designed to protect the health of 'sensitive' populations such as asthmatics, children, and the elderly.

  3. Ambient air quality criteria - Wikipedia

    en.wikipedia.org/wiki/Ambient_air_quality_criteria

    Ambient air quality criteria, or standards, are concentrations of pollutants in the air, and typically refer to outdoor air.The criteria are specified for a variety of reasons including for the protection of human health, buildings, crops, vegetation, ecosystems, as well as for planning and other purposes.

  4. Title 40 of the Code of Federal Regulations - Wikipedia

    en.wikipedia.org/wiki/Title_40_of_the_Code_of...

    Subchapter C - Air Programs (Parts 50 - 97) (Clean Air Act) [2] National Ambient Air Quality Standards (NAAQS) Criteria air contaminants; Requirements for Preparation, Adoption and Submittal of Implementation Plans; Approval and Promulgation of Implementation Plans; Ambient Air Monitoring Reference and Equivalent Methods; Prior Notice of ...

  5. Air quality law - Wikipedia

    en.wikipedia.org/wiki/Air_quality_law

    Determining appropriate air quality standards generally requires up-to-date scientific data on the health effects of the pollutant under review, with specific information on exposure times and sensitive populations. It also generally requires periodic or continuous monitoring of air quality.

  6. CEN/TC 264 - Wikipedia

    en.wikipedia.org/wiki/CEN/TC_264

    Its goal is to develop functional standards, and methods for air quality characterisation of emissions, ambient air, indoor air, gases in and from the ground and deposition, in particular measurement methods for air pollutants (for example particles, gases, aerosols, odours, microorganisms), meteorological parameters and methods for ...

  7. Air quality index - Wikipedia

    en.wikipedia.org/wiki/Air_quality_index

    While the methodology was designed to be robust, the practical application for all metropolitan areas proved to be inconsistent due to the paucity of ambient air quality monitoring data, lack of agreement on weighting factors, and non-uniformity of air quality standards across geographical and political boundaries.

  8. Environmental monitoring - Wikipedia

    en.wikipedia.org/wiki/Environmental_monitoring

    Air quality monitors are operated by citizens, [3] [4] [5] regulatory agencies, [6] [7] non-governmental organisations [8] and researchers [9] to investigate air quality and the effects of air pollution. Interpretation of ambient air monitoring data often involves a consideration of the spatial and temporal representativeness [10] of the data ...

  9. Environmental standard - Wikipedia

    en.wikipedia.org/wiki/Environmental_standard

    The National Ambient Air Quality Standards (NAAQS) are set by the Environmental Protection Agency (EPA) to regulate pollutants in the air. The enforcement of these standards is designed to prevent further degradation of air quality. States may set their own ambient standards, so long as they are lower than the national standard. [21]