Table 4-40: Estimated National Emissions of Carbon Monoxide

Table 4-40: Estimated National Emissions of Carbon Monoxide

(Million short tons)

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  1970 1975 1980 1985 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 (R) 2002 (R) 2003 (R) 2004 (R) 2005 (R) 2006 2007
TOTAL all sources 204.04 188.40 185.41 176.85 154.19 147.13 140.90 135.90 133.56 126.78 128.86 117.91 115.38 114.54 114.47 106.26 111.06 106.24 101.43 96.62 92.13 88.25
Highway vehicles 163.23 153.56 143.83 134.19 110.26 104.98 99.71 94.43 89.16 83.88 78.61 75.85 73.24 68.71 68.06 63.48 60.60 56.47 52.35 48.22 44.73 41.61
Off-Highway 11.37 14.33 16.69 19.03 21.45 21.93 22.42 22.90 23.39 23.87 24.36 23.67 23.69 23.32 24.18 24.68 22.66 22.04 21.42 20.80 19.67 18.76
Fuel combustion 4.63 4.48 7.30 8.49 5.51 5.86 6.15 5.59 5.52 5.93 4.34 4.33 4.33 5.54 4.78 4.83 5.47 5.41 5.34 5.27 5.28 5.30
Industrial processesa 9.84 7.54 6.95 5.28 4.77 4.62 4.55 4.65 4.61 4.61 3.64 3.80 3.81 2.55 2.63 2.76 2.24 2.24 2.24 2.24 2.24 2.24
Waste disposal and recycling 7.06 3.23 2.30 1.94 1.08 1.12 1.14 1.25 1.23 1.19 2.90 2.95 3.12 3.02 1.85 1.85 1.59 1.59 1.59 1.59 1.59 1.59
Miscellaneous 7.91 5.26 8.34 7.93 11.12 8.62 6.93 7.08 9.66 7.30 15.02 7.32 7.18 11.41 12.96 8.68 18.49 18.49 18.49 18.49 18.62 18.75

Key R = Revised.

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

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 December 2008.