Site

State

PM AQI* (ug/m3)

Portola

CA

48

Fresno - Garland

CA

36

Stockton - Hazelton Street

CA

35

Visalia - N. Church Street

CA

34

Clovis - N. Villa Ave

CA

33

Hanford - S. Irwin Street

CA

32

Liberty (SAHS)

PA

30

Modesto - 14th Street

CA

30

Canton

OH

29

Lancaster

PA

29