Site

State

PM AQI* (ug/m3)

WY/KC

KS

17

2912 Coffey

NE

11

KNI-Topeka

KS

11

NCORE

NE

9

LLCHD BAM

NE

8

Heritage Park

KS

8

Rangely, CO

CO

8

Watertown

SD

8

Sioux Falls

SD

7

Research Farm

SD

7