Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content

National Emission Inventory

Metadata Updated: November 30, 2020

The National Emission Inventory contains measured, modeled, and estimated data for emissions of all known source categories in the US (stationary sources, fires, light duty vehicles and trucks, Heavy duty engines, Motorcycles, ATVs, non-road engines and equipment, locomotives, aircraft, and marine vessels). The statutory authority leading to the collection of this information comes from Title II, Part A of the Clean Air Act.Substance classes include CAPs, HAPs, and some GHG data.Data included in the National Emission Inventory is collected annually, Air Pollutant Trends Data is made available annually, and an National Emissions Inventory of air emissions of both Criteria and Hazardous air pollutants from all air emissions sources is prepared every three years.

Access & Use Information

Public: This dataset is intended for public access and use. License: See this page for license information.

Downloads & Resources

No file downloads have been provided. The publisher may provide downloads in the future or they may be available from their other links.



Metadata Created Date November 30, 2020
Metadata Updated Date November 30, 2020
Data Update Frequency irregular

Metadata Source

Harvested from OAR-OAQPS Non-Geo Records

Additional Metadata

Resource Type Dataset
Metadata Created Date November 30, 2020
Metadata Updated Date November 30, 2020
Publisher U.S. EPA Office of Air and Radiation (OAR) - Office of Air Quality Planning and Standards (OAQPS)
Identifier {1F3A34AC-1EA3-4E93-95EC-375E559C31A7}
Data First Published 2014-01-01
Language en-US
Data Last Modified 2015-09-23
Public Access Level public
Data Update Frequency irregular
Bureau Code 020:00
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id b38b9a69-f41e-4e09-ac3d-3a7d4e1056ba
Harvest Source Id 99973969-f369-4284-b7ca-aca76425f384
Harvest Source Title OAR-OAQPS Non-Geo Records
Program Code 020:072
Related Documents,
Source Datajson Identifier True
Source Hash 748a6fda973cd3d55aef9e91a6e4aed5123f9a9a
Source Schema Version 1.1
Spatial -180.0,-90.0,180.0,90.0

Didn't find what you're looking for? Suggest a dataset here.

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?