Site

State

PM AQI* (ug/m3)

Liberty (SAHS)

PA

17

NMH48217

MI

17

Steubenville

OH

15

SPRINGFIELDSP

MA

14

Worcester

MA

13

Parkway East (Near Road)

PA

13

Leech Lake Nation: Cass Lake

MN

13

Sinclair

OH

13

GC_MAD

IL

13

TRINITY

MI

12