Table 4-48: Estimated National Emissions of Particulate Matter (PM-10)a
(Million short tons)
1970 | 1975 | 1980 | 1985 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | (R) 1996 | (R) 1997 | (R) 1998 | (R) 1999 | (R) 2000 | (R) 2001 | (R) 2002 | (R) 2003 | (R) 2004 | (R) 2005 | (R) 2006 | (R) 2007 | (R) 2008 | (R) 2009 | (R) 2010 | 2011 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 23.38 | 23.75 | 23.71 | 21.33 | 21.27 | 21.21 | 21.15 | 19.65 | 18.16 | 16.66 | 13.72 | 10.78 | 7.84 |
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 | 0.18 | 0.17 | 0.16 | 0.14 | 0.12 | 0.09 |
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 | 0.34 | 0.32 | 0.30 | 0.27 | 0.22 | 0.17 | 0.12 |
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 | 1.46 | 1.47 | 1.49 | 1.45 | 1.45 | 1.44 | 1.44 | 1.30 | 1.16 | 1.02 | 1.02 | 1.02 | 1.02 |
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 | 0.69 | 0.71 | 0.74 | 1.19 | 1.20 | 1.21 | 1.22 | 1.03 | 0.84 | 0.66 | 0.62 | 0.58 | 0.54 |
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 | 0.29 | 0.29 | 0.29 | 0.29 | 0.30 | 0.31 | 0.32 | 0.31 | 0.29 | 0.28 |
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 | 20.19 | 20.65 | 20.58 | 17.88 | 17.81 | 17.74 | 17.66 | 16.52 | 15.37 | 14.23 | 11.41 | 8.60 | 5.78 |
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.
NOTE
Details may not add up to totals due to rounding in the source.
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 April 2012.