RANKABLE EPA COUNTY AQI
Weld Air Quality - Colorado
EPA county-level evidence, NDS comparative intelligence, and 29 connected ZIP profiles.
Median AQI
52.0
Maximum AQI
119.0
Good-air-quality days
42.70%
Average PM2.5
7.216 ug/m3
NDS Air Quality Score
16.97
U.S. County Rank
980 of 1,049
Percentile
6.39
Grade
F
County status
Weld 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.