Site

State

PM AQI* (ug/m3)

St. Paul-Harding H.S.

MN

14

Waterloo, Water Tower

IA

14

Rochester

MN

13

Boston-Von Hillern

MA

13

Clinton, Chancy Park

IA

13

Davenport, 10th & Vine

IA

12

Near Road

RI

12

Boston - Roxbury

MA

12

Manhattan/IS143

NY

12

Minneapolis-Near Road

MN

12