Site

State

PM AQI* (ug/m3)

Maple Falls-Azure Way

WA

35

Portola

CA

33

I25 Denver

CO

27

Turner - CJHS

OR

25

KALAMAZOO

MI

23

Isla Blanca C323/C667

TX

23

Mission C43

TX

23

East Chicago - Marina

IN

22

South Bend-Shields Dr

IN

22

Eliza Howell- Roadway

MI

21