RANKABLE EPA COUNTY AQI
Spencer Air Quality - Indiana
EPA county-level evidence, NDS comparative intelligence, and 14 connected ZIP profiles.
Median AQI
42.0
Maximum AQI
88.0
Good-air-quality days
64.84%
Average PM2.5
8.145 ug/m3
NDS Air Quality Score
39.38
U.S. County Rank
716 of 1,049
Percentile
31.58
Grade
D
County status
Spencer 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.