Site

State

PM AQI* (ug/m3)

WY/KC

KS

10

Sheridan PD

WY

9

Rangely, CO

CO

8

NCORE

NE

7

Grand Island DOT

NE

7

SF-USD

SD

7

Homestead NHP

NE

6

Chanute

KS

6

2912 Coffey

NE

6

Boulder - CU - 2102 Athens St.

CO

6