RANKABLE EPA COUNTY AQI
Pennington Air Quality - South Dakota
EPA county-level evidence, NDS comparative intelligence, and 6 connected ZIP profiles.
Median AQI
31.0
Maximum AQI
107.0
Good-air-quality days
79.01%
Average PM2.5
5.762 ug/m3
NDS Air Quality Score
63.83
U.S. County Rank
343 of 1,049
Percentile
67.27
Grade
C
County status
Pennington 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.