Site

State

PM AQI* (ug/m3)

DEARBORN

MI

18

Steubenville

OH

15

St Theodosius

OH

14

MOUNDSVILLE

WV

12

Charleroi

PA

12

Columbia

NJ

12

Lawrenceville

PA

11

Parkway East (Near Road)

PA

11

Holbrook

PA

11

Columbus NR - Smoky Row

OH

11