RANKABLE EPA COUNTY AQI
Clay Air Quality - Alabama
EPA county-level evidence, NDS comparative intelligence, and 10 connected ZIP profiles.
Median AQI
32.0
Maximum AQI
133.0
Good-air-quality days
85.36%
Average PM2.5
6.618 ug/m3
NDS Air Quality Score
66.85
U.S. County Rank
299 of 1,049
Percentile
71.47
Grade
B
County status
Clay is part of the governed NDS rankable EPA county universe.
Methodology
EPA AQI evidence used here is county-derived. ZIP profiles connect to this evidence through the governed NDS geography relationship.