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Why might it be dangerous to eat shellfish that were gathered near a harbor?

User Perpil
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2 Answers

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Answer: high traces of mercury and other harmful substances that have been dumped by local businesses, sewage plants, and etc.


Hope this is helpful!
User AFoeee
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I'm thinking that the shellfish could be affected by human activity in the harbor such as pollution.
User Zhangyangyu
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