Site

State

PM AQI* (ug/m3)

2912 Coffey

NE

13

UC1

SD

12

Lake George-Lake George RS ...

CO

12

Rangely, CO

CO

11

NCORE

NE

10

Watertown

SD

10

Delta

CO

9

KNI-Topeka

KS

9

Research Farm

SD

8

Laramie County Mobile

WY

7