The city of Winnipeg don’t want to believe that malathion can be dangerous to man. They insisted to work with Health Canada to further investigate it.

“The City of Winnipeg Public Service will be reviewing the WHO report in consultation with Health Canada who license and normalize the use of malathion by municipalities,” said Michelle Finley, a spokesperson for the city.

The International Agency for Research on Cancer (IARC), a specialized agency of WHO, announced Friday that malathion and another insecticide, diazinon, have been disovered to be likely carcinogenic.

The agency issued the same classification for glyphosate, a key ingredient in the weed control product Roundup.