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Report: EPA Can Strengthen Its Process for Revising Air Quality Dispersion Models that Predict Impact of Pollutant Emissions

Report #18-P-0241, September 5, 2018

What Was Found

Air quality estimates derived from air quality dispersion models are used to make important decisions to protect public health, such as setting emissions limits.

Report Materials

  • Report at a Glance (pdf) (188.74 KB)
  • Full Report (pdf) (1.08 MB)

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The EPA's Office of Inspector General is a part of the EPA, although Congress provides our funding separate from the agency, to ensure our independence. We were created pursuant to the Inspector General Act of 1978, as amended.

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Environmental Protection Agency  |  Office of Inspector General
1200 Pennsylvania Avenue, N.W. (2410T)  |  Washington, DC 20460  |  202-566-2391
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Last updated on October 7, 2025
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