Site
State
PM AQI* (ug/m3)
Emmetsburg, ILCC
IA
19
Liberty (SAHS)
PA
17
Iowa City, Hoover School
15
DEARBORN
MI
14
DECATUR
IL
13
Leech Lake Nation: Cass Lake
MN
Steubenville
OH
TRINITY (GHIB)
Detroit Lakes
GC_MAD
12