RANKABLE EPA COUNTY AQI
Madison Air Quality - Kentucky
EPA county-level evidence, NDS comparative intelligence, and 3 connected ZIP profiles.
Median AQI
39.0
Maximum AQI
73.0
Good-air-quality days
74.34%
Average PM2.5
7.443 ug/m3
NDS Air Quality Score
54.53
U.S. County Rank
494 of 1,049
Percentile
52.77
Grade
C
County status
Madison 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.