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Mercury in Fish Activity
Tom complete this activity, go to the following website, read through the module and answer the questions when they are posed. The website is
http://shawhighstudents.org/apes/activity/mercury-in-fish/
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Your Last Name?
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What period of APES are you in?
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3
4
5
What is in some fish and shellfish that has caused the EPA and FDA to issue the restriction?
Your answer
Why is there a restriction for pregnant women and young children, but not the rest of the population?
Your answer
Do pregnant women have to avoid all fish? Explain your answer.
Your answer
What human actions lead to increased mercury levels in the environment?
Your answer
How does the mercury end up in fish? Describe flow of mercury.
Your answer
The EPA criterion for human health is 0.3 ug/g. Which fish species have average mercury concentrations that exceed the EPA limits?
Your answer
The concern level for piscivorous (fish-eating) mammals is 0.1 Hg ug/g. Which fish species have average mercury concentrations that exceed this limit? Why is the mercury level for piscivorous mammals lower than the level for human health?
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Where in the United States are mercury wet deposition levels highest? What do you think explains this pattern?
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In which samples were mercury concentrations the highest (fish, streams, or sediment)? Why do you think this is?
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What is bioaccumulation? Biomagnification? How does it apply which fish are considered more toxic to eat?
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