RANKABLE EPA COUNTY AQI
Jefferson Air Quality - Missouri
EPA county-level evidence, NDS comparative intelligence, and 25 connected ZIP profiles.
Median AQI
40.0
Maximum AQI
77.0
Good-air-quality days
79.05%
Average PM2.5
6.796 ug/m3
NDS Air Quality Score
61.72
U.S. County Rank
371 of 1,049
Percentile
64.60
Grade
C
County status
Jefferson 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.