Living at the top of the food chain, sharks can accumulate dangerous levels of methylmercury.

因为生活在食物链顶端，所以鲨鱼可以积累达到危险水平。

Our simulations show that the projected methylmercury concentrations in forage fish and Chinook salmon will surpass Canada's mercury consumption limits this century, as well as the consumption advisory level issued by the World Health Organization.

我们显示，本纪内，饲料鱼和奇努克鲑鱼中预计甲基浓度就将超过加拿大摄入限额，以及界卫生组织发布摄入指引水平。