Illinois Ozone 8-hour Exceedance Summary

8-hour Exceedances Summary
Values in each column is 8-hour concentration - standard of 70 parts per billion;
Region  County Site 4/16  4/17  4/18  5/23  5/24 
Chicago Metropolitan  Cook Alsip   71       
Cook Chicago - Com Ed         74 
Cook Chicago - SWFP 73  76  76  73  77 
Cook Chicago - Taft   71      78 
Cook Cicero         76 
Cook Des Plaines         72 
Cook Evanston   72    73  76 
Cook Lemont         78 
Cook Northbrook   71    71  79 
Cook Schiller Park          
DuPage Lisle         72 
Kane Elgin   73       
Lake Zion     76  71  81 
McHenry Cary          
Will Braidwood         72 
Metro-East  Jersey Jerseyville       75   
Madison Alton          
Madison Maryville          
Madison Wood River          
Randolph Houston          
St. Clair East St. Louis          
Northern Illinois  Rock Island Rock Island          
Winnebago Loves Park 71  72       
West Central Illinois  Adams Quincy          
Macoupin Nilwood          
Peoria Peoria          
Peoria Peoria Heights          
Sangamon Springfield          
East Central Illinois  Champaign Thomasboro          
McLean Normal          
Macon Decatur          
Southeast Illinois  Effingham Effingham          
Hamilton Knight Prairie Township