40 Protection of Environment 3 2007-07-01 2007-07-01 false Classification of regions. 52.51 Section 52.51 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) APPROVAL AND PROMULGATION OF IMPLEMENTATION PLANS Alabama
ยง 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 [37 FR 10847, May 31, 1972]