Energy
Environment of Status
Acid Rain, NOx Budget Trading and Clean Air Interstate Rule Programs Emissions: End of 2008
Clean Air Markets Division U.S. Environmental Protection Agency April 2009
Human Health
Progress under the Acid Rain, NOx Budget Trading, and CAIR Programs
Ozone Season NOx Emissions 1
2,500
Annual SO2 Emissions 20
2
2,000
NO x Emissions (thousand tons)
SO 2 Emissions (million tons)
1,924 1,500 1,246
emissions cap
15
e missions cap
10 15.7 5 11.2 10.2
1,000
preliminary*
500
609
8.9
506 481
7.7
1990 2000 2004 2007 2008
0 1990 2000 2005 2007 2008
* Based on initial data submissions in early 2009 that are currently under EPA review and revision as needed. 2. From all Acid Rain Program sources that include over 3,500 electric generation units that use fossil fuels.
1. From all NOx Budget Trading Program sources including about 2,600 units from the electric power industry and other large stationary sources.
State-by-State Annual SO2 Emission Levels for Acid Rain Program Sources, 1990-2008
SO2 Emissions (million tons) .
18 16 14 12 10 8 6 4 2 0 1990 1995 2000 Year 2005 2007 2008
2008 data are preliminary
State-by-State Annual NOx Emission Levels for Acid Rain Program Sources, 1995-2008
NOX Emissions (million tons) .
7 6 5 4 3 2 1 0 1995 2000 2005 Year 2007 2008
2008 data are preliminary
State-by-State Ozone Season NOX Emission Levels for NOX Budget Trading Program Sources, 1990-2008
Ozone Season NOX (million tons) .
2.5 2.0 1.5 1.0 0.5 0.0 1990 2000 2005 Year 2007 2008
2008 data are preliminary
Energy
Environment
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Clean Air Markets www.epa.gov/airmarkets
Human Health