By Glen Harrop, Ottawa Sun, April 5, 2017
Two years after 30 students and staff at Charles H. Hulse Public School became ill after contact with pesticides, the company that did the spraying has been charged.
The company, Rentokil, sprayed the school on April 11, 2015 to control cockroaches. Afterward, students and staff complained of headaches, nausea and itchy eyes.
http://www.ottawasun.com/2017/04/05/pest-control-company-charged-over-2015-incident-at-charles-h-hulse-public-school