National Data System · Environmental Intelligence · EPA Air Quality
National Data System Air Quality Intelligence
RANKABLE EPA COUNTY AQI

Will Air Quality - Illinois

EPA county-level evidence, NDS comparative intelligence, and 12 connected ZIP profiles.

Compare this County
Median AQI
45.0
Maximum AQI
156.0
Good-air-quality days
59.34%
Average PM2.5
9.162 ug/m3
NDS Air Quality Score
23.62
U.S. County Rank
918 of 1,049
Percentile
12.31
Grade
F

County status

Will 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.