RANKABLE EPA COUNTY AQI
Solano Air Quality - California
EPA county-level evidence, NDS comparative intelligence, and 16 connected ZIP profiles.
Median AQI
34.0
Maximum AQI
61.0
Good-air-quality days
98.88%
Average PM2.5
4.625 ug/m3
NDS Air Quality Score
89.37
U.S. County Rank
50 of 1,049
Percentile
95.32
Grade
A+
County status
Solano 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.