Site

State

PM AQI* (ug/m3)

East St. Louis

IL

13

Padonia

MD

13

Brigantine

NJ

11

CARY

IL

11

Boston-Von Hillern

MA

11

Groton Fort Griswold

CT

11

East High School

OH

10

Brockton

MA

10

Princess Anne

MD

10

Worcester

MA

10