Health Canada has not seen any other studies related to the exposure in the community to any of the environmental factors to health. Going back to the notion of environmental exposure, one of the things the Alberta Cancer Board points to is the absence of any childhood cancers in the community. Childhood cancers would be one of the strong signals of environmental exposure. The second factor the report points to is that communities that are closer to the oil sands have not seen any elevation in their rates of cancer. These communities were compared in the report as well.
So we are not saying there is no environmental exposure. We are saying we need to look at both environmental and other exposures, including occupational exposures, because you would expect that the people working in the oil sands would also have elevated rates of cancer. We need to look into that.