View all text of Subpart B [§ 52.49 - § 52.69]
§ 52.51 - Classification of regions.
The Alabama plan was evaluated on the basis of the following classifications:
| Air quality control region | Pollutant | Particulate matter | Sulfur oxides | Nitrogen dioxide | Carbon monoxide | Photochemical oxidants (hydrocarbons) | Alabama & Tombigbee Rivers Intrastate | II | III | III | III | III | Columbus (Georgia)-Phenix City (Alabama) Interstate | I | III | III | III | III | East Alabama Intrastate | I | III | III | III | III | Metropolitan Birmingham Intrastate | I | II | III | I | I | Mobile (Alabama)-Pensacola-Panama City (Florida)-Southern Mississippi Interstate | I | I | III | III | I | Southeast Alabama Intrastate | II | III | III | III | III | Tennessee River Valley (Alabama)-Cumberland Mountains (Tennessee) Interstate | I | I | III | III | III |
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