Site

State

PM AQI* (ug/m3)

WY/KC

KS

17

KNI-Topeka

KS

10

Watertown

SD

9

Aberdeen

SD

7

Grand Junction - Powell Bui...

CO

7

UC1

SD

6

I25 Denver

CO

6

Heritage Park

KS

6

Sioux Falls

SD

6

PECK

KS

6