RANKABLE EPA COUNTY AQI
Chittenden Air Quality - Vermont
EPA county-level evidence, NDS comparative intelligence, and 25 connected ZIP profiles.
Median AQI
40.0
Maximum AQI
108.0
Good-air-quality days
91.21%
Average PM2.5
4.050 ug/m3
NDS Air Quality Score
60.39
U.S. County Rank
396 of 1,049
Percentile
62.21
Grade
C
County status
Chittenden 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.