2005 National Emissions Inventory Data & Documentation

• 2005 EGU emissions/heat input from EPA's Acid Rain Program
• HAP data received from States and industry to support the MACT program, including the recent Risk and Technology Review rulemaking
• 2005 State, local, and tribal data submitted to EPA under the CERR
• HAP data from Toxic Release Inventory (TRI) for missing facilities and pollutants
• Off-shore platform data from Mineral Management Services (MMS)

Prior to using the 2005 NEI for analyses, users should consider whether the use of 2002 data as a surrogate for the selected sources documented above materially affects their analysis. For example, analyses that require actual 2005 data for every source in the inventory would be limited since some sectors include 2002 emissions. Likewise, micro-level analyses focusing on specific sectors using a mixture of years would be similarly affected.

EPA evaluates inventories, as part of a “modeling platform,” for use in regulation development or Regulatory Impact Analysis (RIA). The technique used is called model performance evaluation. These evaluations are intended to demonstrate that an air quality modeling platform has sufficient predictive capability by comparing the air quality modeling results to ambient data. The modeling platforms include not only the emission inventory data, but also the air quality model, meteorology simulations, initial conditions, boundary conditions, emissions processing assumptions for spatial and temporal allocation and other parameters needed for such simulations. These model performance evaluations are described in technical support documents (TSDs) created by EPA in support of regulatory actions and are referenced in preamble text and RIA documents. EPA use of the 2005 NEI v2 is limited to those cases where model performance is not adversely affected by the use of surrogate data based on pre-determined benchmarks.

Mobile Sector Data
2005 NEI Version 2 SCC Summaries - SCC and pollutant descriptions are provided in the NEI Code Tables below.
NMIM County Database (NCD) for 2005 V2
If you have any questions, please contact Laurel Driveror(919) 541-2859

Point Facility Summary - For both CAPs and HAPs
SCC Summary - For both CAPs and HAPs at county, state and national level.
NAICS Summary - For both CAPs and HAPs
ALLNEI HAP Annual 01233008 - Point stack summary data for HAPs only
ALLNEICAP Annual 113020078 - Point stack summary data for CAPs only
Lead Summaries - State facility and process level table for Stationary Sources of lead emissions