RANKABLE EPA COUNTY AQI
Ward Air Quality - North Dakota
EPA county-level evidence, NDS comparative intelligence, and 10 connected ZIP profiles.
Median AQI
38.0
Maximum AQI
283.0
Good-air-quality days
78.19%
Average PM2.5
9.759 ug/m3
NDS Air Quality Score
34.94
U.S. County Rank
773 of 1,049
Percentile
26.15
Grade
D
County status
Ward 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.