Site

State

PM AQI* (ug/m3)

Watertown

SD

11

UC1

SD

10

Research Farm

SD

10

Rangely, CO

CO

9

Laramie County Mobile

WY

8

Cedar Bluff

KS

8

LLCHD BAM

NE

7

Sioux Falls

SD

7

2912 Coffey

NE

6

NCORE

NE

6