Site

State

PM AQI* (ug/m3)

Rangely, CO

CO

16

Rock Springs SLAMS

WY

13

Cheyenne NCore

WY

11

Watertown

SD

11

Cedar Bluff

KS

11

SF-USD

SD

11

Kemmerer Mobile

WY

10

WY/KC

KS

10

Laramie I-80 Mobile

WY

10

Lander SLAMS

WY

10