As expected but to peg industry as the sole source is ludicris in that region. Especially when the Clearwater River watershed which feeds into the Athabasca is where those surface polymetallics call home. If the soil is natural high in heavy metals, so is the vegetation, the wildlife and the water. If your food source is that environment then of course cancers will be higher than average.
AB and clear across SK the boreal will never be the same again. Saskatchewan is the richest piece of real estate on the planet with mind boggling mineral wealth that is downwind of the oilsands and so kick back, relax and enjoy the benefits because there isn't a damn thing you can do to keep that wealth from being extracted.