RANKABLE EPA COUNTY AQI
Ottawa Air Quality - Michigan
EPA county-level evidence, NDS comparative intelligence, and 10 connected ZIP profiles.
Median AQI
40.0
Maximum AQI
139.0
Good-air-quality days
77.81%
Average PM2.5
6.946 ug/m3
NDS Air Quality Score
45.76
U.S. County Rank
626 of 1,049
Percentile
40.17
Grade
C
County status
Ottawa 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.