Table 4-43: Estimated National Emissions of Particulate Matter (PM-10)a

Table 4-43: Estimated National Emissions of Particulate Matter (PM-10)a

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(Million short tons)

  1970 1975 1980 1985 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 (R) 2003 (R) 2004 (R) 2005 (R) 2006 (R) 2007 2008
Total all sources 13.02 7.56 7.01 41.32 27.75 27.35 27.10 27.36 28.61 25.82 22.86 22.91 22.89 22.57 22.96 22.94 18.43 18.38 18.32 18.27 16.15 14.03 11.92
Highway vehicles 0.48 0.46 0.43 0.41 0.39 0.37 0.35 0.34 0.32 0.30 0.29 0.27 0.26 0.24 0.23 0.21 0.20 0.20 0.20 0.19 0.19 0.18 0.17
Off-Highway 0.16 0.21 0.26 0.30 0.33 0.33 0.33 0.34 0.34 0.34 0.34 0.34 0.33 0.34 0.32 0.32 0.31 0.32 0.33 0.35 0.33 0.32 0.30
Fuel combustion 2.87 2.25 2.45 1.54 1.20 1.15 1.18 1.12 1.11 1.18 0.91 0.91 0.84 0.85 0.89 0.94 0.54 0.53 0.51 0.49 0.46 0.42 0.38
Industrial processesb 7.67 3.70 2.75 1.06 1.04 0.99 0.99 0.91 0.91 0.95 0.65 0.67 0.67 0.50 0.51 0.54 1.05 1.00 0.95 0.91 0.89 0.87 0.86
Waste disposal and recycling 1.00 0.37 0.27 0.28 0.27 0.28 0.28 0.33 0.31 0.29 0.45 0.47 0.49 0.47 0.36 0.36 0.24 0.23 0.23 0.23 0.23 0.23 0.23
Miscellaneousc 0.84 0.57 0.85 37.74 24.54 24.23 23.96 24.33 25.62 22.77 20.22 20.25 20.31 20.18 20.64 20.57 16.10 16.10 16.10 16.10 14.05 12.01 9.97

KEY: R = revised.

a Fine particulate matter less than 10 microns. Data include PM without condensibles.
b Industrial 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 its methodology.

SOURCE
U.S. Environmental Protection Agency, Clearinghouse for Inventories and Emissions Factors (CHIEF), Current Emission Trends Summaries, available at http://www.epa.gov/ttn/chief/trends/index.html as of October 2009.