Site

State

PM AQI* (ug/m3)

Watertown

SD

18

Aberdeen

SD

15

KNI-Topeka

KS

15

LLCHD BAM

NE

14

Research Farm

SD

13

WY/KC

KS

11

UC1

SD

11

Pierre

SD

10

Rangely, CO

CO

8

NCORE

NE

8