RANKABLE EPA COUNTY AQI
Hughes Air Quality - South Dakota
EPA county-level evidence, NDS comparative intelligence, and 5 connected ZIP profiles.
Median AQI
14.0
Maximum AQI
88.0
Good-air-quality days
94.41%
Average PM2.5
3.228 ug/m3
NDS Air Quality Score
84.36
U.S. County Rank
85 of 1,049
Percentile
91.98
Grade
A
County status
Hughes 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.