Site

State

PM AQI* (ug/m3)

Hurst Road

AK

41

Etna

CA

41

LOCKELAND

TN

28

Hopkinsville

KY

23

Columbia

TN

23

Indpls - I-70 E

IN

22

Smiths Grove

KY

22

NCore

AK

21

HERNANDO

MS

21

Clarksville

TN

20