Health Canada to test taps for cancer contaminants
The federal government is ordering tests of Canada's drinking water over concerns it may contain contaminants thought to raise the risk of cancer and other health problems.
Health Canada is now seeking a contractor to determine if the contaminants — known as disinfection byproducts — flow from the country's taps.
Water-treatment plants have long used disinfectants such as chlorine and ozone to eliminate bacteria from drinking water.