Site

State

PM AQI* (ug/m3)

Seiling

OK

32

North OKC

OK

25

San Antonio Old Hwy90 C677

TX

24

Moore

OK

24

Healdton

OK

24

Laredo C313

TX

22

Kaufman C71

TX

22

Von Ormy Highway 16

TX

22

San Antonio Northwest C23

TX

21

Lawton North

OK

21