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Table 4-49: Estimated National Emissions of Particulate Matter (PM-2.5)(a) (Million short tons)

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 1990199119921993199419951996199719981999200020012002200320042005200620072008200920102011(R) 2012(R) 2013(R) 201420152016
Total7.567.327.207.157.546.936.726.266.267.217.297.005.815.895.975.595.745.886.015.995.966.106.226.356.226.196.16
Highway vehicles0.320.310.290.280.260.250.230.220.200.180.170.160.330.320.320.310.300.280.250.220.200.200.180.170.160.150.13
Off-Highway0.300.300.310.310.310.310.310.310.300.310.300.290.340.320.300.290.270.250.240.230.210.210.200.190.180.170.15
Fuel combustion0.910.890.930.850.840.900.660.660.631.281.291.301.131.131.131.131.030.940.830.840.840.840.820.800.780.780.78
Industrial processesb0.560.570.580.500.500.500.370.380.390.490.500.530.480.500.520.530.510.490.470.450.420.400.400.410.420.420.42
Waste disposal and recycling0.230.240.240.290.270.250.430.440.460.440.330.330.270.270.270.270.250.230.210.190.180.160.190.220.250.250.25
Miscellaneous5.235.004.854.935.364.734.724.244.284.514.694.393.263.353.443.073.383.704.014.064.114.294.424.544.434.434.43

KEY: R = revised.

a Particulate matter less than 2.5 microns in size. Data include PM without condensable.

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

NOTE

Details may not add up to totals due to rounding in the source.

SOURCE

U.S. Environmental Protection Agency, Air Emissions Inventories, Air Pollutant Emissions Trends Data, available at https://www.epa.gov/air-emissions-inventories/air-pollutant-emissions-tr... as of Mar. 3, 2017.

Updated: Tuesday, May 23, 2017