Illinois PM2.5 24-hour Exceedance Summary

Value in each column is 24-hour concentration - standard of 35 micrograms per cubic meter

(values in micrograms per cubic meter)

Region  County Site 2/20  4/4  7/21  7/22  7/23  8/1 
Chicago Metropolitan  Cook Alsip            
Cook Chicago-Com Ed            
Cook Chicago-Springfield Pump            
Cook Chicago-Mayfair            
Cook Chicago-Washington HS            
Cook Cicero            
Cook Des Plaines 35.5  40.3         
Cook McCook            
Cook Northbrook         36.2   
Cook Schiller Park            
Cook Summit            
Du Page Naperville            
Kane Aurora            
Kane Elgin   39.9         
McHenry Cary            
Will Braidwood            
Will Joliet            
Metro-East  Jersey Jerseyville            
Madison Alton            
Madison Granite City-23rd&Madison            
Madison Granite City-Gateway Medical            
Madison Wood River            
Randolph Houston            
St Clair E St. Louis            
Northern Illinois  Rock Island Rock Island           36.7 
Winnebago Rockford            
West Central Illinois  Peoria Peoria            
Sangamon Springfield            
East Central Illinois  Champaign Bondville            
Champaign Champaign            
Macon Decatur     37.3  37.6  40.1   
McLean Normal     37.8       
Southeast Illinois  Hamilton Knight Prairie           35.5