Site

State

PM AQI* (ug/m3)

Carlisle

PA

35

Lancaster

PA

32

Marysville-7th Ave

WA

32

Laredo C313

TX

30

Lancaster DW

PA

29

San Antonio Palo Alto C676

TX

29

Harrisburg

PA

29

Bridgeport

CT

27

Camden Spruce St

NJ

27

Rome

GA

26