Estimated U.S. Emissions of Particulate Matter (PM-10)

KEY: P = preliminary; R = revised.

^a Fine particulate matter less than 10 microns. Data include PM without condensable.

^bIndustrial processes consists of chemical and allied product manufacturing, metals processing, petroleum and related industries, other industrial processes; solvent utilization; and storage and transport.

^c In 1985 there appears to be a spike in Miscellaneous emissions. This is likely due to a methodological change, and the EPA does not change historical data when it changes...

Estimated U.S. Emissions of Volatile Organic Compounds

KEY: P = preliminary; R = revised.

^aIndustrial processes consists of chemical and allied product manufacturing, metals processing, petroleum and related industries, and other industrial processes; and solvent utilization, storage, and transport.

Estimated U.S. Emissions of Nitrogen Oxides

KEY: R = revised.

^aIndustrial processes consists of chemical and allied product manufacturing, metals processing, petroleum and related industries, and other industrial processes; and solvent utilization, storage, and transport.

Estimated U.S. Emissions of Carbon Monoxide

KEY: P = preliminary; R = revised. 

^aIndustrial processes consists of chemical and allied product manufacturing, metals processing, petroleum and related industries, other industrial processes; and solvent utilization, storage, and transport.

Estimated U.S. Average Vehicle Emissions Rates per Vehicle by Vehicle Type Using Gasoline, Diesel, and Electric

KEY: Btu = British thermal unit; CO = carbon monoxide; CO2 = carbon dioxide; HC=hydrocarbons; N = data do not exist; NOx= nitrogen oxides; P = projection; PM2.5 = particulate matter with diameter <=2.5 micrometers; R = revised.

^a Total HC includes exhaust and evaporative emissions.

^b Motorcycle emission rates were last analyzed in 2010.

^c For electric vehicles, total HC and exhaust CO, NOx, PM2.5 and CO2 g/mile values are zero.

Energy Intensity of Passenger Modes (Metric)

KEY: Btu = British thermal unit; N = data does not exist; R = revised; U = data are not available.

^a Data from 2007 were calculated using a new methodology developed by FHWA. Data for these years are based on new categories and are not comparable to previous years. The new category Light duty vehicle, short wheel base replaces the old category Passenger car and includes passenger cars, light trucks, vans and sport utility vehicles with a wheelbase (WB) equal to or less than 121 inches. The new category Light duty vehicle, long wheel base replaces Other...

U.S. Government Energy Consumption by Agency and Source (Metric)

KEY: Btu = British thermal unit; DHS = Department of Homeland Security; FY = fiscal year; GSA = General Services Administration; N = data do not exist; NASA = National Aeronautics and Space Administration; R = revised.

^a Includes all U.S. government agencies not separately displayed. See http://ctsedwweb.ee.doe.gov/Annual/Report/AgencyReference.aspx for agency list.

^b Includes liquefied petroleum gas and Navy special fuel oil.

Average Fuel Efficiency of U.S. Light Duty Vehicles

KEY: CAFE = Corporate Average Fuel Economy; GVWR = gross vehicle weight rating; mpg = miles per gallon; U = data are not available.

^a Data from 2007 were calculated using a new methodology developed by FHWA. Data for these years are based on new categories and are not comparable to previous years. The new category Light duty vehicle, short wheel base replaces the old category Passenger car and includes passenger cars, light trucks, vans and sport utility vehicles with a wheelbase (WB) equal to or less than 121 inches. The new category Light...

Energy Intensity of Passenger Modes

KEY: Btu = British thermal unit; N = data do not exist; U = data are not available.

^a Data from 2007 were calculated using a new methodology developed by FHWA. Data for these years are based on new categories and are not comparable to previous years. The new category Light duty vehicle, short wheel base replaces the old category Passenger car and includes passenger cars, light trucks, vans and sport utility vehicles with a wheelbase (WB) equal to or less than 121 inches. The new category Light duty vehicle, long wheel base replaces...

U.S. Government Energy Consumption by Agency and Source

KEY: Btu = British thermal unit; DHS = Department of Homeland Security; FY = fiscal year; GSA = General Services Administration; N = data do not exist; NASA = National Aeronautics and Space Administration; R = revised.

^a Includes all U.S. government agencies not separately displayed. See http://ctsedwweb.ee.doe.gov/Annual/Report/AgencyReference.aspx for agency list.

^b Includes liquefied petroleum gas and Navy special fuel oil.