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	5/13/22	6/4/22	6/5/22	6/14/22	6/20/22	6/21/22	6/23/22	6/24/22	6/29/22	6/30/22	7/3/22	7/5/22	7/7/22	7/8/22	7/11/22	7/18/22
Chicago Metropolitan	Cook	Alsip					77			84	77		73
	Cook	Chicago - Com Ed					78			80	77							74
	Cook	Chicago - SWFP					76			79	80			72
	Cook	Chicago - Taft					73			76	71
	Cook	Cicero					75			77	72
	Cook	Des Plaines					75			78	72
	Cook	Evanston				71	80			86	73
	Cook	Lemont					75			80	75	71
	Cook	Northbrook					80			76	74
	Cook	Schiller Park								78
	DuPage	Lisle								79
	Kane	Elgin					73			79					71
	Lake	Zion				80	89			81
	McHenry	Cary	73							78	73
	Will	Braidwood					71		71
Metro-East	Jersey	Jerseyville			74		74			72	72	71
	Madison	Alton		72	73		80			73	81	76					79
	Madison	Maryville						76
	Madison	Wood River									78	72				73	71
	Randolph	Houston						72			73
	St. Clair	East St. Louis									72
Northern Illinois	Rock Island	Rock Island
Northern Illinois	Winnebago	Loves Park
West Central Illinois	Adams	Quincy
	Macoupin	Nilwood					73					73
	Peoria	Peoria
	Peoria	Peoria Heights
	Sangamon	Springfield			71		77					78
East Central Illinois	Champaign	Thomasboro					74
	McLean	Normal					79					73
	Macon	Decatur					75					74
Southeast Illinois	Effingham	Effingham
Southeast Illinois	Hamilton	Knight Prairie Township