RANKABLE EPA COUNTY AQI
Knox Air Quality - Ohio
EPA county-level evidence, NDS comparative intelligence, and 10 connected ZIP profiles.
Median AQI
40.0
Maximum AQI
159.0
Good-air-quality days
84.11%
Average PM2.5
N/A
NDS Air Quality Score
48.82
U.S. County Rank
583 of 1,049
Percentile
44.27
Grade
C
County status
Knox 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.