RANKABLE EPA COUNTY AQI
Crook Air Quality - Oregon
EPA county-level evidence, NDS comparative intelligence, and 7 connected ZIP profiles.
Median AQI
24.0
Maximum AQI
75.0
Good-air-quality days
80.66%
Average PM2.5
5.693 ug/m3
NDS Air Quality Score
73.91
U.S. County Rank
183 of 1,049
Percentile
82.54
Grade
B
County status
Crook 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.