Site

State

PM AQI* (ug/m3)

MOUNDSVILLE

WV

23

Lancaster DW

PA

14

Clinton, Chancy Park

IA

13

Red Lake Nation

MN

13

Liberty (SAHS)

PA

13

Leech Lake Nation: Cass Lake

MN

13

TRINITY

MI

12

Terre Haute-Lafayette Ave

IN

11

Iowa City, Hoover School

IA

11

GC_MAD

IL

11