RANKABLE EPA COUNTY AQI
Columbia Air Quality - Georgia
EPA county-level evidence, NDS comparative intelligence, and 8 connected ZIP profiles.
Median AQI
36.0
Maximum AQI
90.0
Good-air-quality days
94.19%
Average PM2.5
N/A
NDS Air Quality Score
74.93
U.S. County Rank
168 of 1,049
Percentile
84.06
Grade
B
County status
Columbia 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.