Site

State

PM AQI* (ug/m3)

Potosi

WI

22

Manhattan/IS143

NY

10

Waterbury

CT

9

Leech Lake Nation: Cass Lake

MN

9

Flemington

NJ

9

WeymouthFR

MA

9

Terre Haute-Lafayette Ave

IN

8

Detroit Lakes

MN

7

KALAMAZOO

MI

7

Indpls-W.18th St

IN

7