RANKABLE EPA COUNTY AQI
Knox Air Quality - Nebraska
EPA county-level evidence, NDS comparative intelligence, and 4 connected ZIP profiles.
Median AQI
39.0
Maximum AQI
115.0
Good-air-quality days
89.32%
Average PM2.5
N/A
NDS Air Quality Score
52.85
U.S. County Rank
524 of 1,049
Percentile
49.90
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.