52.2230—Attainment dates for national standards.
The following table presents the latest dates by which the national standards are to be attained. The dates reflect the information presented in Tennessee's plan.
| Air quality control region | Pollutant | Particulate matter | Primary | Secondary | Sulfur oxides | Primary | Secondary | Nitrogen dioxide | Carbon monoxide | Ozone |
|---|---|---|---|---|---|---|---|---|---|---|
| Eastern Tennessee-Southwestern Virginia Interstate: | ||||||||||
| a. Sullivan County: Bristol and Kingsport nonattainment areas 1 | d | d | c | c | b | b | d | |||
| b. Campbell County nonattainment areas 1 | d | d | c | c | b | b | b | |||
| c. Anderson/Knox County nonattainment area 1 | c | d | c | c | b | b | b | |||
| d. Copperhill nonattainment area 1 | c | c | d | f | b | b | b | |||
| e. Knox County nonattainment area 1 | c | c | c | c | b | d | d | |||
| f. Bradley County nonattainment area 1 | c | c | c | c | b | b | d | |||
| g. Roane County nonattainment area | c | c | c | c | b | b | d | |||
| h. Rest of AQCR | c | c | c | c | b | b | b | |||
| Tennessee River Valley-Cumberland Mountains Intrastate | c | c | c | c | b | b | b | |||
| Middle Tennessee Intrastate: | ||||||||||
| a. Benton/Humphreys County nonattainment areas 1 | c | c | d | d | b | b | c | |||
| b. Davidson County nonattainment area 1 | d | d | c | c | b | e | d | |||
| c. Maury County nonattainment area 1 | c | c | b | b | b | b | d | |||
| d. Rest of AQCR | c | c | b | b | b | b | c | |||
| Western Tennessee Intrastate: | ||||||||||
| a. Benton/Humphreys County nonattainment area 1 | c | c | d | d | b | b | b | |||
| b. Rest of AQCR | c | c | b | b | b | b | b | |||
| Chattanooga Interstate: | ||||||||||
| a. Hamilton County nonattainment area 1 | c | c | b | b | b | b | d | |||
| b. Rest of AQCR | c | c | b | b | b | b | b | |||
| Metropolitan Memphis: | ||||||||||
| a. Shelby County nonattainment area 1 | c | c | b | b | b | e | d | |||
| b. Rest of AQCR | c | c | b | b | b | b | c | |||
| 1 For more precise delineation, see § 81.343 of this chapter. | ||||||||||
| a. Air quality levels presently below primary standards or area is unclassifiable. | ||||||||||
| b. Air quality levels presently below secondary standards or area is unclassifiable. | ||||||||||
| c. July 1975. | ||||||||||
| d. December 31, 1982. | ||||||||||
| e. December 31, 1987. | ||||||||||
| f. 18-month extension granted. | ||||||||||