Site

State

PM AQI* (ug/m3)

Yosemite Village - Visitor ...

CA

35

Portola

CA

34

Lancaster

PA

27

Maple Falls-Azure Way

WA

27

Reseda

CA

27

York

PA

26

Kamiah

ID

25

The Dalles - Cherry Heights

OR

24

Johnstown

PA

24

Chester

PA

24