Site

State

PM AQI* (ug/m3)

Liberty (SAHS)

PA

31

Lancaster DW

PA

27

DETROIT-SW

MI

25

Canton

OH

24

St Theodosius

OH

24

TRINITY

MI

23

Isla Blanca C323/C667

TX

22

Portola

CA

21

Brownsville C80

TM

21

Houston Westhollow C410

TX

21