RANKABLE EPA COUNTY AQI
DuPage Air Quality - Illinois
EPA county-level evidence, NDS comparative intelligence, and 43 connected ZIP profiles.
Median AQI
44.0
Maximum AQI
158.0
Good-air-quality days
61.17%
Average PM2.5
9.786 ug/m3
NDS Air Quality Score
19.13
U.S. County Rank
960 of 1,049
Percentile
8.30
Grade
F
County status
DuPage is part of the governed NDS rankable EPA county universe.
Connected ZIP codes
Methodology
EPA AQI evidence used here is county-derived. ZIP profiles connect to this evidence through the governed NDS geography relationship.