Site

State

PM AQI* (ug/m3)

Gillette SLAMS

WY

26

WY/KC

KS

25

Pinedale Gaseous

WY

23

Credit Union

SD

22

KNI-Topeka

KS

21

Lander SLAMS

WY

21

Heritage Park

KS

21

Riverton Mobile

WY

21

Watertown

SD

15

2912 Coffey

NE

15