Site

State

PM AQI* (ug/m3)

Rangely, CO

CO

10

Watertown

SD

8

WY/KC

KS

8

Sheridan PD

WY

8

Rock Springs SLAMS

WY

7

Lander SLAMS

WY

7

Homestead NHP

NE

6

Research Farm

SD

6

Laramie I-80 Mobile

WY

6

Kemmerer Mobile

WY

5