RANKABLE EPA COUNTY AQI
Madison Air Quality - Alabama
EPA county-level evidence, NDS comparative intelligence, and 33 connected ZIP profiles.
Median AQI
42.0
Maximum AQI
72.0
Good-air-quality days
75.14%
Average PM2.5
7.391 ug/m3
NDS Air Quality Score
47.88
U.S. County Rank
596 of 1,049
Percentile
43.03
Grade
C
County status
Madison is part of the governed NDS rankable EPA county universe.
Connected ZIP codes
Methodology
EPA AQI evidence used here is county-derived. ZIP profiles connect to this evidence through the governed NDS geography relationship.