Ozone 8-hour Exceedance Summary

Values in each column is 8-hour concentration - standard of 70 parts per billion

Region County Site 6/5 6/7 6/26 6/28 6/29 7/3 7/5 7/8 7/9 7/13 7/14 7/25 8/2 8/3 8/5 9/19
Chicago Metropolitan Cook Alsip 79 79 74
Cook Chicago - Com Ed 74
Cook Chicago - SWFP 75 71 72 72
Cook Chicago - Taft 72 77
Cook Cicero
Cook Des Plaines 77
Cook Evanston 71 71 71
Cook Lemont 76 73 80
Cook Northbrook
Cook Schiller Park 76
DuPage Lisle 71 73 95
Kane Elgin 71 71 74 72
Lake Zion 75 72
McHenry Cary 71 78
Will Braidwood
Metro-East Jersey Jerseyville 74 76
Madison Alton 75 86 80
Madison Maryville
Madison Wood River 83 86 88
Randolph Houston
St. Clair East St. Louis 73
Northern Illinois Rock Island Rock Island 72 75
Winnebago Loves Park
West Central Illinois Adams Quincy
Macoupin Nilwood
Peoria Peoria 71
Peoria Peoria Heights 71
Sangamon Springfield
East Central Illinois Champaign Thomasboro
McLean Normal
Macon Decatur
Southeast Illinois Effingham Effingham
Hamilton Knight Prairie Township 72