Site

State

PM AQI* (ug/m3)

Sioux Falls

SD

16

UC1

SD

15

2912 Coffey

NE

11

NCORE

NE

10

LLCHD BAM

NE

10

Rangely, CO

CO

10

Pierre

SD

9

Watertown

SD

9

Research Farm

SD

9

Greeley Hospital

CO

8