Site

State

PM AQI* (ug/m3)

Denver

CO

12

KNI-Topeka

KS

9

Aberdeen

SD

9

WY/KC

KS

9

Rangely, CO

CO

9

2912 Coffey

NE

8

Laramie I-80 Mobile

WY

7

NCORE

NE

7

Sheridan PD

WY

7

Watertown

SD

7