Slide 6 basically speaks to increased depositional patterns of mercury in the northern environments of Fort McMurray and into the Peace-Athabasca Delta where the people of the Mikisew Cree First Nation are living. This slide speaks about mercury, but like mercury, other substances—like PAHs, polycyclic aromatic hydrocarbons, which are carcinogenic, mutagenic, and teratogenic compounds—are also increasing. They also have deposition patterns similar to what you're seeing with the mercury trends. Together, this complex soup of contaminants is of concern to the communities that rely on healthy wildlife and healthy waters for subsistence.
On November 17th, 2016. See this statement in context.