RANKABLE EPA COUNTY AQI
Plymouth Air Quality - Massachusetts
EPA county-level evidence, NDS comparative intelligence, and 52 connected ZIP profiles.
Median AQI
40.0
Maximum AQI
108.0
Good-air-quality days
80.25%
Average PM2.5
6.399 ug/m3
NDS Air Quality Score
50.84
U.S. County Rank
557 of 1,049
Percentile
46.76
Grade
C
County status
Plymouth 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.