RANKABLE EPA COUNTY AQI
Lemhi Air Quality - Idaho
EPA county-level evidence, NDS comparative intelligence, and 9 connected ZIP profiles.
Median AQI
23.0
Maximum AQI
85.0
Good-air-quality days
69.06%
Average PM2.5
6.489 ug/m3
NDS Air Quality Score
68.20
U.S. County Rank
272 of 1,049
Percentile
74.05
Grade
B
County status
Lemhi 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.