Site

State

PM AQI* (ug/m3)

Liberty (SAHS)

PA

25

Steubenville

OH

24

Tonawanda II

NY

19

East High School

OH

16

Greensburg

PA

16

Lawrenceville

PA

16

St Theodosius

OH

15

Florence

PA

15

Canton

OH

14

MOUNDSVILLE

WV

14