Site

State

PM AQI* (ug/m3)

Brockton

MA

20

CCRI Providence

RI

19

Worcester

MA

18

Lancaster DW

PA

18

Bridgeport

CT

18

E Providence

RI

17

WARE

MA

17

Elizabeth Trailer

NJ

17

East Hartford

CT

17

Newark Firehouse

NJ

17