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	5/13	5/15	6/2	6/3	6/4	6/5	6/9	6/10	6/13	6/15	6/21	7/5	7/6	7/18	7/20	7/21	7/23	7/26	7/31	8/1	8/19	9/14	9/22	9/23	9/24	9/25
Chicago Metropolitan	Cook	Alsip			78	78	72		77	72	78	72		72	78	92
	Cook	Chicago - Com Ed			78	74	71		79	72		72		71	80	96					72					75
	Cook	Chicago - SWFP			80	71	73		78	71		84			74	74	74		72
	Cook	Chicago - Taft
	Cook	Cicero			75											85
	Cook	Des Plaines			78											81					71						71
	Cook	Evanston			79		73		71			85			73	72									76		72	71
	Cook	Lemont				77					71					74
	Cook	Northbrook			81											82											77
	Cook	Schiller Park
	DuPage	Lisle			71	79
	Kane	Elgin				83
	Lake	Zion			79							73				73				72		76			74		77
	McHenry	Cary				80																					71	71
	Will	Braidwood
Metro-East	Jersey	Jerseyville		71	74	76
	Madison	Alton																						75
	Madison	Maryville	73		77	74							81					71		75			73
	Madison	Wood River			78	71							72
	Randolph	Houston	75
	St. Clair	East St. Louis			71
Northern Illinois	Rock Island	Rock Island
Northern Illinois	Winnebago	Loves Park
West Central Illinois	Adams	Quincy						75
	Macoupin	Nilwood
	Peoria	Peoria			71			72		71
	Peoria	Peoria Heights			75			74
	Sangamon	Springfield			71	75
East Central Illinois	Champaign	Thomasboro
	McLean	Normal
	Macon	Decatur			71	73		73
Southeast Illinois	Effingham	Effingham				73		74		71
Southeast Illinois	Hamilton	Knight Prairie Township