RANKABLE EPA COUNTY AQI
Hardin Air Quality - Kentucky
EPA county-level evidence, NDS comparative intelligence, and 15 connected ZIP profiles.
Median AQI
44.0
Maximum AQI
73.0
Good-air-quality days
72.44%
Average PM2.5
6.850 ug/m3
NDS Air Quality Score
52.65
U.S. County Rank
528 of 1,049
Percentile
49.52
Grade
C
County status
Hardin 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.