Site
State
PM AQI* (ug/m3)
Brigham City
UT
14
Weiser PM25
OR
10
Spanish Springs
NV
Idaho Falls / Penford
ID
9
Sparks
Paul E-Sampler
8
Rose Park
St. Lukes Meridian
7
Rexburg PM25
Shoshone Bannock Tribes
6