RANKABLE EPA COUNTY AQI
Washington Air Quality - Oklahoma
EPA county-level evidence, NDS comparative intelligence, and 3 connected ZIP profiles.
Median AQI
44.0
Maximum AQI
168.0
Good-air-quality days
65.57%
Average PM2.5
7.645 ug/m3
NDS Air Quality Score
29.19
U.S. County Rank
838 of 1,049
Percentile
19.94
Grade
F
County status
Washington 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.