Site

State

PM AQI* (ug/m3)

WY/KC

KS

35

LLCHD BAM

NE

22

Watertown

SD

21

2912 Coffey

NE

21

UC1

SD

21

Heritage Park

KS

20

PECK

KS

19

Research Farm

SD

19

KNI-Topeka

KS

19

Grand Island DOT

NE

18