RANKABLE EPA COUNTY AQI
Ashland Air Quality - Wisconsin
EPA county-level evidence, NDS comparative intelligence, and 11 connected ZIP profiles.
Median AQI
39.0
Maximum AQI
188.0
Good-air-quality days
85.64%
Average PM2.5
6.116 ug/m3
NDS Air Quality Score
47.64
U.S. County Rank
600 of 1,049
Percentile
42.65
Grade
C
County status
Ashland 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.