RANKABLE EPA COUNTY AQI

Clark Air Quality - Arkansas

EPA county-level evidence, NDS comparative intelligence, and 11 connected ZIP profiles.

Median AQI

35.0

Maximum AQI

74.0

Good-air-quality days

97.51%

Average PM2.5

N/A

NDS Air Quality Score

76.29

U.S. County Rank

152 of 1,049

Percentile

85.59

Grade

County status

Clark 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.