RANKABLE EPA COUNTY AQI
Grafton Air Quality - New Hampshire
EPA county-level evidence, NDS comparative intelligence, and 38 connected ZIP profiles.
Median AQI
38.0
Maximum AQI
113.0
Good-air-quality days
81.32%
Average PM2.5
6.420 ug/m3
NDS Air Quality Score
53.12
U.S. County Rank
516 of 1,049
Percentile
50.67
Grade
C
County status
Grafton 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.