Standard Article

Air Quality Indicators, Pollutant Specific

Environmental Policy and Regulation

  1. William F. Hunt Jr.1,
  2. Rachael Marceau1,
  3. Alissa Anderson1,
  4. Kristen Immen1,
  5. Ryland Pigg1,
  6. David Mintz2

Published Online: 15 JAN 2013

DOI: 10.1002/9780470057339.vaa013m.pub2

Encyclopedia of Environmetrics

Encyclopedia of Environmetrics

How to Cite

Hunt, W. F., Marceau, R., Anderson, A., Immen, K., Pigg, R. and Mintz, D. 2013. Air Quality Indicators, Pollutant Specific . Encyclopedia of Environmetrics. 1.

Author Information

  1. 1

    North Carolina State University, Raleigh, NC, USA

  2. 2

    U. S. Environmental Protection Agency, NC, USA

Publication History

  1. Published Online: 15 JAN 2013


Pollutant-specific air quality indicators can be extremely useful in communicating environmental information to the public, air pollution control officials, the private sector, the Congress, and academia. This article examines the use of National Ambient Air Quality Standard (NAAQS)-related pollutant-specific air quality indicators. Standard-related statistics are used to understand (i) pollutant-specific air quality trends, (ii) the impact of pollutant control strategies, (iii) tracking emission reductions, (iv) air quality status and the severity of the air pollution problem, and (v) the calculation of design values as required by the 1990 Clean Air Act. The traditional EPA trend methodology is compared with both meteorologically adjusted trends and population- and land area-weighted trends.


  • air pollution;
  • air quality data;
  • National Ambient Air Quality Standards;
  • trend statistics;
  • traditional trend methods;
  • meteorological adjusted trends;
  • population- and land area-weighted trends