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Air Emisisons Inventories

Published by U.S. EPA Office of Air and Radiation (OAR) - Office of Air Quality Planning and Standards (OAQPS) | U.S. Environmental Protection Agency | Metadata Last Checked: July 09, 2025 | Last Modified: 2014-01-01
This data exchange allows states to submit data to the US Environmental Protection Agency's National Emissions Inventory (NEI). NEI is a national database of air emissions information including input from numerous State and local air agencies, tribes, and industry. (Status: In Transition to the Emission Inventory System)

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