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Table
4-45: Estimated National Emissions of
Sulfur Dioxide
(Million short tons)
Excel | CSV
TOTAL
all sources |
31.22 |
28.04 |
25.93 |
23.31 |
23.08 |
22.37 |
22.08 |
21.77 |
21.35 |
18.62 |
18.39 |
18.84 |
18.94 |
17.54 |
16.35 |
15.93 |
14.62 |
15.02 |
14.67 |
14.63 |
13.77 |
Highway
vehicles |
0.27 |
0.33 |
0.39 |
0.46 |
0.50 |
0.47 |
0.44 |
0.40 |
0.37 |
0.34 |
0.30 |
0.30 |
0.30 |
0.30 |
0.26 |
0.25 |
0.26 |
0.24 |
0.22 |
0.21 |
0.19 |
Off-Highway |
0.28 |
0.30 |
0.32 |
0.35 |
0.37 |
0.38 |
0.39 |
0.39 |
0.40 |
0.41 |
0.41 |
0.42 |
0.43 |
0.48 |
0.44 |
0.44 |
0.52 |
0.49 |
0.47 |
0.45 |
0.43 |
Fuel
combustion |
23.46 |
22.66 |
21.39 |
20.02 |
20.29 |
19.80 |
19.49 |
19.25 |
18.89 |
16.23 |
16.25 |
16.65 |
16.74 |
15.34 |
14.16 |
13.74 |
12.66 |
13.09 |
12.77 |
12.76 |
11.93 |
Industrial processesa |
7.09 |
4.68 |
3.77 |
2.43 |
1.86 |
1.68 |
1.72 |
1.65 |
1.62 |
1.59 |
1.37 |
1.43 |
1.43 |
1.33 |
1.38 |
1.43 |
1.06 |
1.07 |
1.08 |
1.10 |
1.11 |
Waste
disposal and recycling |
0.01 |
0.05 |
0.03 |
0.03 |
0.04 |
0.04 |
0.04 |
0.07 |
0.06 |
0.05 |
0.03 |
0.03 |
0.03 |
0.03 |
0.03 |
0.04 |
0.03 |
0.03 |
0.03 |
0.03 |
0.03 |
Miscellaneousb |
0.11 |
0.02 |
0.01 |
0.01 |
0.01 |
0.01 |
0.01 |
0.01 |
0.02 |
0.01 |
0.02 |
0.01 |
0.01 |
0.07 |
0.07 |
0.04 |
0.11 |
0.10 |
0.10 |
0.09 |
0.09 |
a Industrial processes comprises chemical and allied product
manufacturing, metals processing, petroleum and related industries, and other
industrial processes; solvent utilization; and storage and transport.
b Miscellaneous comprises nontransportation-related fugitive
dust, agriculture and forestry, nonroad gasoline, nonroad diesel, other
nonroad sources and other miscellaneous combustion that could not be
accurately allocated to specific source categories.
NOTE
Previous edition's data include all on road mobile sources and
some nonroad mobile sources, since EPA changed the methodology to estimate
emissions, the details of the data are not available, this data set only
contains the on road mobile sources.
SOURCE
U.S. Environmental Protection Agency, Clearinghouse for
Inventories and Emissions Factors (CHIEF), Current Emission Trends Summaries,
Internet website http://www.epa.gov/ttn/chief/trends/index.html as of July
2007.
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