RANKABLE EPA COUNTY AQI
Union Air Quality - Tennessee
EPA county-level evidence, NDS comparative intelligence, and 1 connected ZIP profiles.
Median AQI
11.0
Maximum AQI
19.0
Good-air-quality days
100.00%
Average PM2.5
N/A
NDS Air Quality Score
88.17
U.S. County Rank
62 of 1,049
Percentile
94.18
Grade
A
County status
Union 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.