Site

State

PM AQI* (ug/m3)

Weiser PM25

OR

7

Rexburg PM25

ID

6

Sparks

NV

5

TRPA Office

NV

5

Hawthorne

UT

5

Salmon PM2.5

ID

4

Soda Springs PM25

ID

4

NR

UT

4

Spanish Springs

NV

4

McCall

ID

4