RANKABLE EPA COUNTY AQI
Lyon Air Quality - Minnesota
EPA county-level evidence, NDS comparative intelligence, and 11 connected ZIP profiles.
Median AQI
37.0
Maximum AQI
140.0
Good-air-quality days
84.53%
Average PM2.5
4.720 ug/m3
NDS Air Quality Score
55.42
U.S. County Rank
487 of 1,049
Percentile
53.44
Grade
C
County status
Lyon 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.