The Alabama plan was evaluated on the basis of the following classifications: ----------------------------------------------------------------------------------------------------------------
Pollutant
----------------------------------------------------------
Air quality control region Photochemical
Particulate Sulfur Nitrogen Carbon oxidants
matter oxides dioxide monoxide (hydrocarbons)----------------------------------------------------------------------------------------------------------------Alabama & Tombigbee Rivers Intrastate................ II III III III IIIColumbus (Georgia)-Phenix City (Alabama) Interstate.. I III III III IIIEast Alabama Intrastate.............................. I III III III IIIMetropolitan Birmingham Intrastate................... I II III I IMobile (Alabama)-Pensacola-Panama City (Florida)- I I III III I
Southern Mississippi Interstate.....................Southeast Alabama Intrastate......................... II III III III IIITennessee River Valley (Alabama)-Cumberland Mountains I I III III III
(Tennessee) Interstate..............................---------------------------------------------------------------------------------------------------------------- [37 FR 10847, May 31, 1972]