Site

State

PM AQI* (ug/m3)

Spanish Fork

UT

15

Copper View

UT

12

Garden Valley

ID

11

Rose Park

UT

11

Erda

UT

11

McCall

ID

11

BV

UT

11

Weiser PM25

OR

10

Paul E-Sampler

ID

10

Roosvelt

UT

9