Site

State

PM AQI* (ug/m3)

Lake George-Lake George RS ...

CO

16

UC1

SD

10

Aberdeen

SD

9

Watertown

SD

9

Sioux Falls

SD

8

2912 Coffey

NE

8

Credit Union

SD

8

KNI-Topeka

KS

7

Pierre

SD

7

Globeville

CO

7