Site

State

PM AQI* (ug/m3)

Lancaster DW

PA

21

Steubenville

OH

17

Parkway East (Near Road)

PA

16

Beaver Falls

PA

15

Elizabeth Trailer

NJ

15

Liberty (SAHS)

PA

15

MOUNDSVILLE

WV

15

RIT

PA

15

Allentown

PA

14

Trenton

NJ

14