First Nations in Alberta want Ottawa to classify compound found in oilsands tailings as toxic

First Nations in Alberta want Ottawa to classify compound found in oilsands tailings as toxic
An  aerial view of a water of body surrounded by a brown landscape. Smoke stacks are visible.

Two First Nations in Alberta have asked the federal government to examine whether a component of oilsands tailings pond water known to harm fish and other animals should be classed as toxic.