RANKABLE EPA COUNTY AQI
Jo Daviess Air Quality - Illinois
EPA county-level evidence, NDS comparative intelligence, and 11 connected ZIP profiles.
Median AQI
35.0
Maximum AQI
87.0
Good-air-quality days
94.30%
Average PM2.5
N/A
NDS Air Quality Score
70.27
U.S. County Rank
244 of 1,049
Percentile
76.72
Grade
B
County status
Jo Daviess 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.