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Community Multiscale Air Quality Modeling System (CMAQ)

CMAQ Fact Sheet

For more than a decade, EPA and states have used EPA’s Community Multiscale Air Quality (CMAQ) Modeling System, a powerful computational tool for air quality management.

CMAQ brings together three kinds of models:

  • Meteorological models to represent atmospheric and weather activities.
  • Emission models to represent man-made and naturally-occurring contributions to the atmosphere.
  • An air chemistry-transport model to predict the atmospheric fate of air pollutants under varying conditions.

Learn more about CMAQ by clicking on the link to our fact sheet below.