Site

State

PM AQI* (ug/m3)

Portola

CA

33

Salmon PM2.5

ID

33

Seeley Elementary School

MT

29

HERNANDO

MS

22

Waterloo, Water Tower

IA

21

Minneapolis-Phillips

MN

20

PUBLIC HEALTH

IA

19

Minneapolis-Near Road

MN

19

Beulah North

ND

19

Naperville

IL

19