Site
State
PM AQI* (ug/m3)
Seeley Elementary School
MT
33
WY/KC
KS
32
Oak Harbor-SW 6th (US)
WA
27
Portola
CA
26
Beulah North
ND
24
Libby Courthouse
22
Pinehurst
ID
21
KNI-Topeka
20
Heritage Park
19
Woodlawn
FL