RANKABLE EPA COUNTY AQI
Trinity Air Quality - California
EPA county-level evidence, NDS comparative intelligence, and 12 connected ZIP profiles.
Median AQI
33.0
Maximum AQI
83.0
Good-air-quality days
68.42%
Average PM2.5
N/A
NDS Air Quality Score
66.05
U.S. County Rank
311 of 1,049
Percentile
70.32
Grade
B
County status
Trinity 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.