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Question
Read the following scenario and answer the questions below.Mercury is a heavy metal that occurs naturally in minerals and rocks. The release of mercury from natural sources has been relatively constant over time. However, the anthropogenic release of mercury has increased significantly in recent years primarily because of increased fossil fuel mining and combustion. Mercury that is released into the air eventually ends up in soils or surface water. Once in water, microbes convert mercury into methylmercury, which is absorbed quickly and concentrated in the tissues of predatory fish such as the shark and the swordfish. Large fish typically concentrate more mercury than small fish. People who eat fish with high methylmercury concentrations can show tremors, deafness, muscle incoordination, and attention deficits. Children and pregnant women are especially sensitive to methylmercury's toxic effects. Learning disabilities and developmental delays are common in children who have been exposed to significant levels of methylmercury.
Which of the following Canadian agencies is primarily responsible for addressing causes of mercury pollution?
A) PHAC
B) Environment Canada
C) Heavy Metal Monitoring Group
D) Health Canada
E) Department of Fisheries and Oceans
Answer
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Related questions
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