Site

State

PM AQI* (ug/m3)

Chippewa Lake

OH

13

Fort Wayne-Beacon St

IN

13

Steubenville

OH

13

St. Paul-Harding H.S.

MN

12

Carlisle

PA

12

Minneapolis-Near Road

MN

11

CHARLESTON

WV

11

SEAFORD

DE

11

RIT

PA

11

Columbus NR - Smoky Row

OH

11