RANKABLE EPA COUNTY AQI
St. Martin Air Quality - Louisiana
EPA county-level evidence, NDS comparative intelligence, and 2 connected ZIP profiles.
Median AQI
36.0
Maximum AQI
77.0
Good-air-quality days
91.88%
Average PM2.5
N/A
NDS Air Quality Score
75.35
U.S. County Rank
166 of 1,049
Percentile
84.26
Grade
B
County status
St. 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.