Ala. Admin. Code r. 335-3-A
APPENDIX A
CLASS I COUNTIES
January 18, 1972
| Justification | ||||
| County | Urban Population Exceeded 50% | Secondary National Ambient Air Quality Standard Is Exceeded | % Urban Population1 | Ambient Air Quality2 |
| Autauga | X | 53.6 | 3 | |
| Calhoun | X | X | 64.1 | 94 |
| Coffee | X | 58.0 | 3 | |
| Colbert | X | X | 58.1 | 130 |
| Covington | X | 56.6 | 46 | |
| Cullman | X | 87 | ||
| Dale | X | 62.3 | 3 | |
| Etowah | X | X | 72.1 | 142 |
| Houston | X | X | 64.9 | 76 |
| Jackson | X | 127 | ||
| Jefferson | X | X | 68.4 | 170 |
| Lauderdale | X | X | 50.0 | 114 |
| Lee | X | 68.2 | 3 | |
| Madison | X | X | 78.6 | 60 |
| Mobile | X | X | 82.1 | 110 |
| Montgomery | X | X | 82.8 | 124 |
| Morgan | X | X | 58.7 | 74 |
| Pike | X | X | 56.7 | 67 |
| Russell | X | X | 55.7 | 70 |
| St. Clair | X | 74 | ||
| Shelby | X | 82 | ||
| Talladega | X | X | 53.2 | 115 |
| Tuscaloosa | X | X | 74.0 | 94 |
| Walker | X | 103 |
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1 % Urban Population As Defined By The U.S. Department of Commerce Census Bureau for 1970.
2 Air Quality Measured As Micrograms of Suspended Particulates Per Cubic Meter of Ambient Air (mg/m3) in 1971. (National Ambient Air Quality Secondary Standard for particulate is 60 mg/m3 annual geometric mean)
3 No Data