RANKABLE EPA COUNTY AQI
Martin Air Quality - North Carolina
EPA county-level evidence, NDS comparative intelligence, and 7 connected ZIP profiles.
Median AQI
28.0
Maximum AQI
50.0
Good-air-quality days
100.00%
Average PM2.5
N/A
NDS Air Quality Score
89.53
U.S. County Rank
47 of 1,049
Percentile
95.61
Grade
A+
County status
Martin 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.