Site

State

PM AQI* (ug/m3)

Eau Claire

WI

26

Liberty (SAHS)

PA

26

WY/KC

KS

26

PERKINSTOWN

WI

25

POTAWATOMI

WI

23

Tulsa

OK

22

Near Road OKC

OK

22

LACROSSE DOT

WI

22

Rochester

MN

21

TROUT LAKE

WI

21