Table 4-40:  Estimated National Emissions of Carbon Monoxide (Million short tons) ,,,,,,,,,,,,,,,,,,,,,,
,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.,,,,,,,,,,,,,,,,,,,,,,
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"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.",,,,,,,,,,,,,,,,,,,,,,
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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.",,,,,,,,,,,,,,,,,,,,,,
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