Site

State

PM AQI* (ug/m3)

Portola

CA

37

Darrington-Fir St

WA

37

Burlington

VT

29

Maple Falls-Azure Way

WA

25

San Antonio Old Hwy90 C677

TX

25

Compton

CA

25

DETROIT-SW

MI

25

Marysville-7th Ave

WA

24

Texarkana New Boston

TX

24

Newark Firehouse

NJ

24