RANKABLE EPA COUNTY AQI
Chatham Air Quality - Georgia
EPA county-level evidence, NDS comparative intelligence, and 22 connected ZIP profiles.
Median AQI
44.0
Maximum AQI
90.0
Good-air-quality days
66.67%
Average PM2.5
8.524 ug/m3
NDS Air Quality Score
34.95
U.S. County Rank
772 of 1,049
Percentile
26.24
Grade
D
County status
Chatham 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.