2010 Progress Report - International Joint Commission

Figure 13. Affected Units in CAIR NO x
Annual
and CAIR NO x
Ozone Season Programs
Number of Affected Units
3,500
3,000
2,500
2,000
1,500
1,000
467
1,913
13
208
563
1,614
14
NO x
Emissions (tons)
Figure 14. Ozone Season Emissions from
CAIR NO x
Ozone Season Sources
800,000
700,000
600,000
500,000
400,000
300,000
200,000
Commitments
500
921
876
100,000
0
7
CAIR NO x
Annual Program
4
CAIR NO x
Ozone Season Program
0
2008
2009
Industrial Units
Gas EGUs
New CAIR Units
Legacy NBP Units
Other Fuel EGUs
Oil EGUs
Coal EGUsR
Unclassified EGUs
Source: EPA, 2010
Note: “Other” fuel refers to units that burn fuels such as waste,
wood, petroleum coke, or tire-derived fuel.
Source: US EPA 2010
Emissions Reductions: Between 2008, the CAIR
transition year, and 2009, when compliance became
mandatory, ozone season NO x
emissions fell in every
state participating in the CAIR NO x
ozone season
program. Units in the seasonal program reduced
their overall NO x
emissions from 689,000 tons to
495,000 tons (Figure 14). An 11% drop in heat input
and a 22% improvement in NO x
rate accounted for
this reduction in total summer NO x
emissions.
Annual NO x
Reductions
From 2008 to 2009, NO x
emissions from units in the
CAIR NO x
annual program region fell from 2.3 million
tons to 1.3 million tons, refl ecting a 10% drop in
energy demand (as measured by heat input) and a
36% improvement in the rate of NO x
emissions.
In 2009, the total emissions from sources in the
annual NO x
region were about 350,000 tons (21%)
below the regional budget. All states participating
in the program reduced emissions from 2008
levels. Eighteen states and the District of Columbia
had emissions below their allowance budgets,
collectively by about 191,000 tons. Another six states
(Delaware, Iowa, Louisiana, Michigan, Mississippi and
Pennsylvania) exceeded their 2009 budgets by a total
of about 37,000 tons.
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