Site

State

PM AQI* (ug/m3)

Lancaster DW

PA

25

ELIZA HOWELL-NR

MI

22

MOUNDSVILLE

WV

21

DETROIT-SW

MI

21

Harrisburg

PA

20

Chester

PA

20

NEW HAVEN

MI

19

Liberty (SAHS)

PA

19

Kittanning

PA

17

Lebanon

PA

17