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Criteria Air Emissions Trends

Published by U.S. EPA Office of Air and Radiation (OAR) - Office of Air Quality Planning and Standards (OAQPS) | U.S. Environmental Protection Agency | Catalog Last Checked: May 01, 2026 at 06:06 PM | Dataset Last Updated: January 01, 2014
The Air Emissions Trends site provides national trends of criteria pollutant and precursor emissions data based on the the National Emissions Inventory (NEI) from 1970 - the latest NEI year.

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