Site
State
PM AQI* (ug/m3)
Liberty (SAHS)
PA
30
Maple Falls-Azure Way
WA
24
HAZ2
KY
22
DEARBORN
MI
20
Portola
CA
Hannover
ND
19
Iowa City, Hoover School
IA
17
Salmon PM2.5
ID
16
MILWAUKEE 16TH ST
WI
Eugene - Amazon Park
OR