RANKABLE EPA COUNTY AQI

Johnston Air Quality - Oklahoma

EPA county-level evidence, NDS comparative intelligence, and 8 connected ZIP profiles.

Median AQI

44.0

Maximum AQI

119.0

Good-air-quality days

74.71%

Average PM2.5

N/A

NDS Air Quality Score

29.88

U.S. County Rank

832 of 1,049

Percentile

20.52

Grade

County status

Johnston 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.