Site

State

PM AQI* (ug/m3)

Evansville-Buena Vista

IN

18

HOUSTON

IL

17

Lancaster DW

PA

17

Indpls-W.18th St

IN

17

Iowa City, Hoover School

IA

16

Oldtown

MD

16

Indpls - I-70 E

IN

16

KNIGHT_P

IL

16

Allentown

PA

16

Indpls-Washington Park

IN

15