RANKABLE EPA COUNTY AQI

San Miguel Air Quality - Colorado

EPA county-level evidence, NDS comparative intelligence, and 4 connected ZIP profiles.

Median AQI

21.0

Maximum AQI

94.0

Good-air-quality days

93.04%

Average PM2.5

4.316 ug/m3

NDS Air Quality Score

84.30

U.S. County Rank

87 of 1,049

Percentile

91.79

Grade

County status

San Miguel is part of the governed NDS rankable EPA county universe.

EPA AQI evidence used here is county-derived. ZIP profiles connect to this evidence through the governed NDS geography relationship.