2011 National Emissions Inventory (NEI) Data
The data posted at this site will include only the latest version of the 2011 NEI. This webpage should not be used as a reference for past versions of the NEI and users wanting a record of data used in their analysis should archive and document those inventories to meet their own archival needs. Users should not assume that the data posted on this site will stay the same as the data they use at a given point in time.
SCC Data Files
The full detail data files for the Point, Onroad, Nonroad and Nonpoint data categories can be downloaded from the list below. Please note these files are larger than previous inventories and can be linked in Access if importing fails. These SCC data files do not include “events” data -wildfires and prescribed burning emissions. The events data can be found at the “Prescribed/Wildfires by Pollutant” link below under “Other Emissions Summaries”. To obtain a complete inventory total, please include these data in addition to the 4 SCC data files provided here.
- Point (ZIP CSV) (514.0 MB)
- Onroad (ZIP CSV) (43.8 MB)
- Nonroad (ZIP CSV) (317.0 MB)
- Nonpoint (ZIP CSV) (74.7 MB)
Additional Summary Data
Tribal Lands Emissions Summaries
Other Emissions Summaries
Files that can be used for air quality modeling can be found at the Air Emissions Modeling.
Maps and Fusion Tables
Fusion Tables (by Google) allow mapping data, creating charts and using tabular data, including viewing, filtering, summing and downloading. You can use the links below to access the 2011 NEI data using Fusion Tables. Google's feedback link is the best way to ask for improvements since Google is trialing Fusion Tables - this link is under the gear icon at the upper right of the Fusion Table pages.
Instructions on using Google Fusion Tables
|Carbon Monoxide (CO)||Table||Map|
|Volatile Organic Compounds (VOC)||Table||Map|
|Oxides of Nitrogen (NOx)||Table||Map|
|Sulfur Dioxide (SO2)||Table||Map|
|Particulate Matter ≤ 2.5 microns (PM2.5)||Table||Map|
|Particulate Matter ≤ 10 microns (PM10)||Table||Map|
|Elemental Carbon part of PM2.5 (EC)||Table||Map|
|Organic Carbon part of PM2.5 (OC)||Table||Map|