NEI Overview


The National Emissions Inventory (NEI) is a comprehensive and detailed estimate of air emissions of criteria pollutants, criteria precursors, and hazardous air pollutants from air emissions sources. The NEI is released every three years based primarily upon data provided by State, Local, and Tribal air agencies for sources in their jurisdictions and supplemented by data developed by the US EPA. The NEI is built using the Emissions Inventory System (EIS) first to collect the data from State, Local, and Tribal air agencies and then to blend that data with other data sources.
For the technical user, there is a graphic model of the NEI database and table and column information (metadata).
System Data Searches
- Multisystem Search
- BR Search
- GHG Search
- GHG Query Builder
- ICIS Search
- ICIS Air Pollution Search
- RADNET Radiation Search
- RadNet Query Builder
- RCRAInfo Search
- NEI Search
- NGGS Search
- SDWIS Search
- SEMS Search
- UV Index Search
- TRI Explorer
- TRI Search
- Form R Search
- Form R & A Download
- EZ Search
- Customized Search
- Pollution Prevention
Facility Registry Service (FRS) Query