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CAIR Reduces Tennessee’s Emissions

  • By 2015, CAIR will help Tennessee sources reduce emissions of sulfur dioxide (SO2) by 178,000 tons or 53 percent.
SO2 Emissions (thousand tons) 2003 2010 2015
Tennessee SO2 emissions without CAIR 338 354 316
Tennessee SO2 emissions with CAIR N/A 211 160
  • By 2015, CAIR will help Tennessee sources reduce emissions of nitrogen oxides (NOx) by 107,000 tons or 80 percent.
NOx Emissions (thousand tons) 2003 2009 2015
Tennessee NOx emissions without CAIR 134 106 106
Tennessee NOx emissions with CAIR N/A 36 27

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:
        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 pollution.
  • 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 (PM).
    • 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 counties:
          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

    Ground-level Ozone

    • 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 2000 2010 2015
Tennessee’s AREP without CAIR (mills/kWh*) 59.3 56.2 55.1
Tennessee’s AREP with CAIR (mills/kWh*) N/A 57.0 56.2
    *mill = 1/10 of a cent

1) Partial counties are identified by (P) following the county name.
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 Integrated Planning Modeling (IPM), reflecting CAIR as finalized. This recent data may differ slightly from modeling results in the Final CAIR Federal Register Notice and Regulatory Impact Analysis (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 North American Electric Reliability Corporation (NERC) region.

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