RANKABLE EPA COUNTY AQI
Thurston Air Quality - Washington
EPA county-level evidence, NDS comparative intelligence, and 17 connected ZIP profiles.
Median AQI
26.0
Maximum AQI
52.0
Good-air-quality days
98.14%
Average PM2.5
3.506 ug/m3
NDS Air Quality Score
90.17
U.S. County Rank
45 of 1,049
Percentile
95.80
Grade
A+
County status
Thurston 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.