Site
State
PM AQI* (ug/m3)
McAlester
OK
40
Copan
26
Terre Haute-Lafayette Ave
IN
23
Portola
CA
Tulsa
22
Ponca City
21
Moses Lake-Balsam St
WA
20
Indpls-W.18th St
Glenpool
19
Near Road
KY