Dr. Harada's study found Health Canada safety mercury guidelines are too weak to protect people from long-term health impacts of low level mercury exposure, which is now worldwide due to industrial pollution from sources such as pulp mills, and coal power plants. The translated study was released on the 40th anniversary of the first fishing ban due to mercury contamination on the Wabigoon River.

Between 1962 and 1970, the Dryden mill, owned by Reed Incorporated and Great Lakes Forest Products Limited, dumped 20,000 pounds of mercury into the Wabigoon River. Members of Grassy Narrows First Nation converged on Queen's Park April 7th 2010 to protest decades of mercury poisoning in their community.

"We're demanding justice and action on this issue," states Grassy Narrows Chief Simon Fobister.

"The people of Grassy Narrows have raised their concerns for forty years, only to have them fall on deaf ears," states Ontario Regional Chief Angus Toulouse. "The demands of Grassy Narrows First Nation are simple and achievable - it is time for the government to listen to the voices of the First Nation."