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Emissions Factors Emissions Inventory Information 2005 National Emissions Inventory 

Data & Documentation 

2005 National Emissions Inventory Data & 

Documentation 

Explanation of File Formats

General Inventory Information

In response to the numerous requests we received for an enhanced version of the 2005 

NEI, EPA has devoted additional resources for development of the 2005 NEI Version 2. The 

following are changes incorporated into this version: 

Point Updates

EGU- 2005 EGU emissions/heat input from EPA'S Acid Rain Program 

Non-EGU Stationary Sources - enhancements were focused on improving the following 

sectors: 

 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) 

Nonpoint Updates 

 2005 Wildfires and prescribed fires added 

 VOC from fireplaces was revised downward based on a change in the emission factor 

Mobile Updates

Updated 2005 NMIM runs based on state/local and tribal submittals of NMIM inputs for 

onroad and nonroad emissions. 

August 2007: Update on Plans for 2005 NEI.

Inventory Documentation

Point

Chromium Speciation 

EIS Code Look up tables Updated October 6, 2008 

NEI2005 Look up tables other than those included in EIS Code Look up Tables Updated 

April 4, 2009 

Mercury Speciation (ZIP 30K) Updated December 19, 2006. Profiles were updated for 2002 

NEI source categories including new data for mobile sources. 

Toxicity weighting factors (MDB 290K) Updated January 10, 2007. 

Technology Transfer Network 

Clearinghouse for Inventories & Emissions Factors

Last updated on Friday, March 05, 2010

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Posted Updates to Data 

November 20, 2008

Mobile 2005 v2 Summaries added 

NMIM Counter Database (NCD) for 2005 v2 added 

December 11, 2008

Mobile

2005 Mobile NEI Version 2 Report

Commerical Marine Vessels 2002 and 2005

Overview of 2005 Version Mobile

Inventory Data

Tier Summaries

Tiersummaries contain only criteria pollutants. The 42 category summaries contains boty 

criteria and HAPS. Both the tier summaries and the 42 category summaries contains data 

from all data categories (point, nonpoint and mobile). 

Tier_Summaries

42 Category Summaries

Mobile Sector Data

2005 NEI Version 2 SCC Summaries - SCC and pollutant descriptions are provided at EIS 

Code Tables

NMIM County Database (NCD) for 2005 V2 

If you have any questions, please contact Laurel Driveror(919) 541-2859 

Biogenic Sector Data

Biogenic Sector Data and Readme for biogenic data - The biogenic emissions data has not 

been updated since it was originally posted in March 2004. It has been moved to the Final 

2005 NEI FTP site for your convenience. 

Point Sector Data

Version 2 of the 2005 NEI - The following zipped Access summary files were created in 

January 2009 and contain annual emissions in tons per year. If you have qny questions 

question, please contact Roy Huntley or (919) 541-1060. 

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 

Nonpoint Sector Data

Version 2 of the 2005NEI - The following zipped Access summary files were created in 

January 2009 and contain annual emissions in tons per year. Only wildfires, prescribed 

burn and residential wood were updated from the 2005 Version1. If you have any 

questions, please contact Roy Huntley or (919) 541-1060. 

SCC Summary - For Both CAPS and HAPS at county, state and national level. 

National Emissions Inventory Input Format

NEI Code Tables 

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2005 Mobile NEI Version 2 Report

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