Site

State

PM AQI* (ug/m3)

Reserve-92 Dove Valley Ln

NM

41

Portola

CA

25

Hurst Road

AK

23

Laredo C313

TX

22

Chester

PA

22

Shuttlesworth

AL

21

Lake George-Lake George RS ...

CO

20

Mission C43

TX

20

Isla Blanca C323/C667

TX

19

San Antonio Old Hwy90 C677

TX

18