Site

State

PM AQI* (ug/m3)

Worcester

MA

16

Liberty (SAHS)

PA

15

SPRINGFIELDSP

MA

15

Utica

NY

15

Steubenville

OH

14

Boston-Von Hillern

MA

14

Columbia

NJ

14

Haverhill

MA

14

Brockton

MA

13

GC_MAD

IL

12