Under the Clean Air Act, EPA establishes air quality standards to protect public health and the environment. EPA has set national air quality standards for six common air pollutants. These include:

    * carbon monoxide,
    * lead,
    * nitrogen dioxide,
    * ozone,
    * particulate matter (also known as particle pollution), and
    * sulfur dioxide.
EPA tracks the emissions from the sources of these pollutants, including how much of each pollutant (or the pollutants that form them) is emitted from various pollution sources. EPA posts the results of our analyses to this web site.

Source sector:

Electricity Generation
Fertilizer & Livestock
Fires
Fossil Fuel Combustion
Industrial Processes
Miscellaneous
Non Road Equipment
On Road Vehicles
Residential Wood Combustion
Road Dust
Solvent Use
Waste Disposal



Total National (USA) Emissions by Pollutant in 2005:
see http://www.epa.gov/air/emissions/

Carbon Monoxide (in Tons) http://www.epa.gov/air/emissions/co.htm

640776
0
4149100
1526969
2193715
34601
20632929
48544438
2857923
0
4296
1996969




PM 2.5 (in Tons)  http://www.epa.gov/air/emissions/pm.htm

515455
1523
411470
213290
541284
763816
268725
136182
382126
964877
7550
275939

PM 10 (in Tons)  http://www.epa.gov/air/emissions/pm.htm

626759
15230
485602
400251
1235980
5558573
284431
193160
389421
10506374
8442
301096

Lead (in Tons)  http://www.epa.gov/air/emissions/pb.htm

55
1
1
185
972
9
989
0
1
0
28
119

Nitrogen_Oxides (in Tons) http://www.epa.gov/air/emissions/nox.htm

3783659
2098
94372
2384297
1163635
3644
4162872
6491821
38324
0
6400
155415

Volatile Organic Compounds (in Tons) http://www.epa.gov/air/emissions/voc.htm

47985
42191
681309
136785
1645584
1202517
2843213
4112147
543469
1
4245897
465003

Sulfur Dioxide (in Tons) http://www.epa.gov/air/emissions/so2.htm

10402756
0
36879
2172886
1116099
688
362447
145966
5263
0
593
29503