Site

State

PM AQI* (ug/m3)

WY/KC

KS

10

KNI-Topeka

KS

9

Rangely, CO

CO

8

Watertown

SD

6

Paonia

CO

6

Aberdeen

SD

5

Heritage Park

KS

5

Sioux Falls

SD

4

2912 Coffey

NE

4

LLCHD BAM

NE

4