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NATIONAL EMISSIONS INVENTORY
Citation:
Impact/Purpose:
EPA, states, multi-state Regional Planning Organizations, and others will use the 2002 National Emissions Inventory, directly or as a starting point for revisions and improvements, to characterize emissions, ambient concentrations, and public health risks from air pollutants.
Description:
The National Emisssions Inventory (NEI) is a data base containing estimates of air pollutant emissions in every US county for the years 1990-2002. National estimates back to 1970 are also part of the NEI. Access to NEI data is available from the following products and services: 1) An FTP server for access to the largest and most detailed files, 2) A website with search features for high level summaries (AIRData), 3) A website with full query features for intermediate needs (NEON), 4) Web-based publications containing summary tables (AQ Trends site), 5) Responses to individual calls and e-mails requesting specific data subsets or summaries. Update: 9/15/2006: NEI final version 1 complete and posted on URL