RANKABLE EPA COUNTY AQI
Grant Air Quality - Washington
EPA county-level evidence, NDS comparative intelligence, and 11 connected ZIP profiles.
Median AQI
26.0
Maximum AQI
76.0
Good-air-quality days
89.71%
Average PM2.5
N/A
NDS Air Quality Score
72.13
U.S. County Rank
207 of 1,049
Percentile
80.25
Grade
B
County status
Grant 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.