RANKABLE EPA COUNTY AQI
Simpson Air Quality - Kentucky
EPA county-level evidence, NDS comparative intelligence, and 1 connected ZIP profiles.
Median AQI
39.0
Maximum AQI
74.0
Good-air-quality days
92.56%
Average PM2.5
N/A
NDS Air Quality Score
69.88
U.S. County Rank
250 of 1,049
Percentile
76.15
Grade
B
County status
Simpson 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.