Site

State

PM AQI* (ug/m3)

South Bend-Shields Dr

IN

17

BLAIR STREET

MO

16

TRINITY ST MARKS

MI

16

Oldtown

MD

16

Elkhart-Prairie St.

IN

15

MILITARY PARK

MI

15

DESPLNS

IL

15

Howard County Near Road

MD

14

Padonia

MD

14

Edgewood

MD

13