Site
State
PM AQI* (ug/m3)
Portola
CA
37
Darrington-Fir St
WA
Burlington
VT
29
Maple Falls-Azure Way
25
San Antonio Old Hwy90 C677
TX
Compton
DETROIT-SW
MI
Marysville-7th Ave
24
Texarkana New Boston
Newark Firehouse
NJ