CAIR Reduces Tennessee’s Emissions
- By 2015, CAIR will help Tennessee sources reduce emissions
of sulfur dioxide (SO2) by 178,000 tons or 53%.
|SO2 Emissions (thousand tons)
|Tennessee SO2 emissions without CAIR
|Tennessee SO2 emissions with CAIR
- By 2015 CAIR will help Tennessee sources reduce emissions
of nitrogen oxides (NOx) by 107,000 tons or 80%.
|NOx Emissions (thousand tons)
|Tennessee NOx emissions without CAIR
|Tennessee NOx emissions with CAIR
CAIR Helps Tennessee and its Neighbors
- Because air emissions travel across state boundaries,
reducing the emissions from sources in Tennessee also will reduce
fine particle pollution and ground-level ozone pollution in other
areas of the country.
- Currently, Tennessee sources significantly contribute
to fine particle pollution in 7 other states including:
Georgia, Indiana, North Carolina, Kentucky, Ohio, West
Virginia, & Alabama
- Currently, Tennessee sources also significantly contribute
to ground-level ozone pollution in:
- Tennessee’s fine particle air quality will improve
because of reductions of SO2 and NOx in:
Alabama, Georgia, Illinois, Indiana, Kentucky, Ohio, North
Carolina & West Virginia
CAIR Makes Tennessee’s Air Cleaner
- CAIR helps Tennessee meet and maintain the National Ambient
Air Quality Standards (NAAQS) for ground-level ozone and fine particle
- SO2 and NOx contribute to the formation of fine particles (PM)
and NOx contributes to the formation of ground-level ozone.
- Areas meeting the NAAQS are in attainment. Those areas not meeting
the standards are known as “nonattainment areas”.
Fine Particle Pollution
- At the end of 2004, 6 Tennessee counties were designated nonattainment
for EPA’s health-based standards for fine particle pollution
- CAIR will help bring one of those counties into attainment by 2015:
1. Hamilton County Chattanooga, TN-GA Area
- CAIR will help reduce particle pollution in all of the remaining
1. Anderson County Knoxville, TN Area
2. Blount County Knoxville, TN Area
3. Knox County Knoxville, TN Area
4. Loudon County Knoxville, TN Area
5. Roane County (P) Knoxville, TN Area
- At the end of 2004, 18 Tennessee counties were designated nonattainment
for EPA’s health-based standards for 8-hour ozone pollution.
- Existing Clean Air Act Programs will bring all of these counties
into attainment by 2010.
1. Hamilton County Chattanooga, TN-GA Area
2. Meigs County Chattanooga, TN-GA Area
3. Montgomery County Clarkesville-Hopkinsville, KY-TN Area
4. Hawkins County Johnson City-Kingsport-Bristol, TN Area
5. Sullivan County Johnson City-Kingsport-Bristol, TN Area
6. Anderson County Knoxville, TN Area
7. Blount County Knoxville, TN Area
8. Cocke (P)County Knoxville, TN Area
9. Jefferson County Knoxville, TN Area
10. Knox County Knoxville, TN Area
11. Loudon County Knoxville, TN Area
12. Sevier County Knoxville, TN Area
13. Shelby County Memphis, TN Area
14. Davidson County Nashville, TN Area
15. Rutherford County Nashville, TN Area
16. Sumner County Nashville, TN Area
17. Williamson County Nashville, TN Area
18. Wilson County Nashville, TN Area
CAIR Is Smart for Tennessee’s Economy
- CAIR helps maintain coal as a viable fuel/energy source,
keeping jobs in Tennessee.
- Regional electricity prices are not significantly impacted by CAIR,
and are projected to be below 2000 levels.
|Average Retail Electricity
Prices (AREP) in 1999 dollars
|Tennessee’s AREP without CAIR (mills/kWh*)
|Tennessee’s AREP with CAIR (mills/kWh*)
| *mill = 1/10 of a cent
1) Partial counties are identified by (P) following the county
2) Projections concerning future levels of air pollution in specific
geographic locations were estimated using the best scientific models
available. They are estimations, however, and should be characterized
as such in any description. Actual results may vary significantly
if any of the factors that influence air quality differ from the
assumed values used in the projections shown here.
3) Small emission increases can occur in a State under CAIR where
shifts in power generation occur, but overall improvements occur
throughout the CAIR region. The Final CAIR includes a compliance
supplement pool of NOx allowances (roughly 200,000 allowances)
for the annual program, which could lead to slightly higher annual
NOx emissions than are stated here.
4) The data presented here is based on recently completed, revised
IPM modeling, reflecting CAIR as finalized. This recent data may
differ slightly from modeling results in the Final CAIR Federal
Register Notice and RIA which were based on modeling that was completed
before EPA had determined the final scope of CAIR. The primary
difference in the earlier modeling included AR, DE, and NJ in the
annual SO2/NOx requirements, and did not include an ozone season
cap on any states.
5) Emissions reductions take into account state and federal pollution
control programs in place when EPA last updated its models in mid-2004.
Reductions from more recent state programs or settlement actions
are not reflected in these tables.
6) Retail electricity prices are by NERC region.