Datasets - Data Refuge

Enforcement and Compliance History Online

Use EPA's Enforcement and Compliance History Online website to search for facilities in your community to assess their compliance with environmental regulations. You can also...
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Air Emissions Inventories

The National Emissions Inventory (NEI) is a detailed estimate of air emissions that include criteria pollutants and hazardous air pollutants. It is an aggregate of data from...
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National Emissions Inventory (NEI) | Air Emissions Inventories | US EPA

The National Emissions Inventory (NEI) is a comprehensive and detailed estimate of air emissions of criteria pollutants, criteria precursors, and hazardous air pollutants from...
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- TXT
- XLS

You can also access this registry using the API (see API Docs).