Site

State

PM AQI* (ug/m3)

Lancaster DW

PA

17

SPRINGFIELDSP

MA

14

Danbury

CT

14

Forest Park

MO

14

Waterbury

CT

13

Bridgeport

CT

13

NEW

PA

12

New Haven - Criscuolo Park

CT

12

GC_MAD

IL

11

Clinton, Chancy Park

IA

11