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Table
4-44: Estimated National Emissions of
Particulate Matter (PM-2.5)a
(Million short tons)
Excel | CSV
| Total |
7.56 |
7.32 |
7.20 |
7.15 |
7.54 |
6.93 |
6.73 |
6.26 |
6.26 |
6.40 |
6.50 |
6.22 |
3.102 |
3.095 |
3.089 |
3.082 |
2.998 |
2.958 |
| Highway
vehicles |
0.32 |
0.31 |
0.29 |
0.28 |
0.26 |
0.25 |
0.23 |
0.22 |
0.20 |
0.18 |
0.17 |
0.16 |
0.15 |
0.14 |
0.14 |
0.13 |
0.11 |
0.10 |
| Off-Highway |
0.30 |
0.30 |
0.31 |
0.31 |
0.31 |
0.31 |
0.31 |
0.31 |
0.30 |
0.31 |
0.30 |
0.29 |
0.29 |
0.29 |
0.29 |
0.29 |
0.26 |
0.25 |
| Fuel
combustion |
0.91 |
0.89 |
0.93 |
0.85 |
0.84 |
0.90 |
0.67 |
0.67 |
0.63 |
0.67 |
0.72 |
0.74 |
0.29 |
0.29 |
0.29 |
0.29 |
0.25 |
0.22 |
| Industrial processesb |
0.56 |
0.57 |
0.58 |
0.50 |
0.50 |
0.50 |
0.37 |
0.38 |
0.39 |
0.30 |
0.31 |
0.32 |
0.36 |
0.36 |
0.36 |
0.36 |
0.36 |
0.35 |
| Waste
disposal and recycling |
0.23 |
0.24 |
0.24 |
0.29 |
0.27 |
0.25 |
0.43 |
0.44 |
0.46 |
0.44 |
0.33 |
0.33 |
0.22 |
0.22 |
0.22 |
0.22 |
0.22 |
0.22 |
| Miscellaneous |
5.23 |
5.00 |
4.85 |
4.93 |
5.36 |
4.73 |
4.72 |
4.24 |
4.28 |
4.50 |
4.68 |
4.38 |
1.80 |
1.80 |
1.80 |
1.80 |
1.81 |
1.82 |
Key: R = revised.
a Particulate matter less than
2.5 microns in size. Data include PM without condensibles
b Industrial processes consists of chemical
and allied product manufacturing, metals processing, petroleum and related
industries, and other industrial processes; solvent utilization; and storage
and transportation.
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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