Site

State

PM AQI* (ug/m3)

Groveland-9010 Hillside Loo...

CA

28

Liberty (SAHS)

PA

25

Parkway East (Near Road)

PA

24

Lawrenceville

PA

20

Fort Lee Near Road

NJ

19

Newark Firehouse

NJ

19

Sequoia National Park-River Rd

CA

19

Lebanon

PA

19

Altoona

PA

18

Carlisle

PA

17