Site

State

PM AQI* (ug/m3)

KNI-Topeka

KS

11

SF-USD

SD

11

Cedar Bluff

KS

10

WY/KC

KS

10

Heritage Park

KS

9

Rangely, CO

CO

8

Grand Island DOT

NE

7

LLCHD BAM

NE

7

Watertown

SD

7

Aberdeen

SD

6