Site

State

PM AQI* (ug/m3)

Liberty (SAHS)

PA

21

Near Road

RI

13

Indpls-W.18th St

IN

12

Branch Street

IL

12

Chester

PA

11

Camden Spruce St

NJ

11

SPRINGFIELDSP

MA

11

Fort Lee Near Road

NJ

11

Indpls - I-70 E

IN

11

Boston - Roxbury

MA

10