RANKABLE EPA COUNTY AQI
Oxford Air Quality - Maine
EPA county-level evidence, NDS comparative intelligence, and 27 connected ZIP profiles.
Median AQI
39.0
Maximum AQI
135.0
Good-air-quality days
74.01%
Average PM2.5
7.965 ug/m3
NDS Air Quality Score
38.22
U.S. County Rank
728 of 1,049
Percentile
30.44
Grade
D
County status
Oxford 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.