RANKABLE EPA COUNTY AQI
Portage Air Quality - Ohio
EPA county-level evidence, NDS comparative intelligence, and 20 connected ZIP profiles.
Median AQI
43.0
Maximum AQI
150.0
Good-air-quality days
77.55%
Average PM2.5
7.515 ug/m3
NDS Air Quality Score
32.06
U.S. County Rank
805 of 1,049
Percentile
23.09
Grade
D
County status
Portage 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.