RANKABLE EPA COUNTY AQI
Black Hawk Air Quality - Iowa
EPA county-level evidence, NDS comparative intelligence, and 20 connected ZIP profiles.
Median AQI
48.0
Maximum AQI
158.0
Good-air-quality days
56.58%
Average PM2.5
8.025 ug/m3
NDS Air Quality Score
23.19
U.S. County Rank
922 of 1,049
Percentile
11.93
Grade
F
County status
Black Hawk is part of the governed NDS rankable EPA county universe.
Connected ZIP codes
Methodology
EPA AQI evidence used here is county-derived. ZIP profiles connect to this evidence through the governed NDS geography relationship.