Site

State

PM AQI* (ug/m3)

State College

PA

21

G.T.Craig

OH

21

Beaver Falls

PA

18

Steubenville

OH

18

Lawrenceville

PA

17

Chippewa Lake

OH

16

East High School

OH

16

Altoona

PA

16

Carlisle

PA

16

Clinton, Chancy Park

IA

16