RANKABLE EPA COUNTY AQI
Fremont Air Quality - Colorado
EPA county-level evidence, NDS comparative intelligence, and 8 connected ZIP profiles.
Median AQI
25.0
Maximum AQI
77.0
Good-air-quality days
91.11%
Average PM2.5
4.929 ug/m3
NDS Air Quality Score
71.83
U.S. County Rank
211 of 1,049
Percentile
79.87
Grade
B
County status
Fremont 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.