RANKABLE EPA COUNTY AQI
Belknap Air Quality - New Hampshire
EPA county-level evidence, NDS comparative intelligence, and 19 connected ZIP profiles.
Median AQI
34.0
Maximum AQI
92.0
Good-air-quality days
87.91%
Average PM2.5
4.798 ug/m3
NDS Air Quality Score
71.07
U.S. County Rank
223 of 1,049
Percentile
78.72
Grade
B
County status
Belknap 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.