WINNIPEG – There are more issues coming to light about the chemical used to kill mosquitoes in Winnipeg.
New tests show some batches of Malathion did not meet the World Health Organizations guidelines because of an impurity in the chemical.
“The 2007 results did not pass, so probably the 2003 results would have not passed. But in both cases, there would be no risk to public health,” says City of Winnipeg Insect Control Boss Ken Nowalsky.
In June, the city used its 2003 stock of Malathion to fog the city, but Nowalsky tells 680 CJOB it’s likely that batch would have failed the testing as well. But since they used it all, it can’t be tested now.
The City still has a batch from 2009 that is considered safe.
It is their last batch of Malathion and Nowalsky says they hope to be using a product called ‘Delta-Guard’ next year.