Practice Factors Influencing Resuspension (5.2) - Other Mechanisms of Chemical Release From Sediments – Part 1

Practice: Factors Influencing Resuspension

Lesson 5.2Other Mechanisms of Chemical Release From Sediments – Part 1

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9 questions

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3 cards from this section. Quick, good the night before a test.
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6 questions · about 4 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
Define resuspension.
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Think about sediments that are disturbed.
Question 2.
What does TSS stand for?
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It's a measurement related to sediment in water.
3Question 3.
What is resuspension?
- A sediment settling process
- The stirring of settled sediments back into water
- A water purification technique
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Think about how settled materials can be disturbed in water.
4Question 4.
True or False: Turbulence decreases the chances of sediment resuspension.
- True
- False
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Recall how water movement affects settled materials.
Question 5.
If a lake has a certain amount of sediments at rest, describe what happens during a heavy rainfall. Include the implications for both water and sediment quality.
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Consider how the dynamics of flow and sediment interaction are impacted.
Question 6.
A wetland area experiences flooding. Calculate the increase in contaminant concentration if 500 kg with 80 mg/kg concentration is resuspended into 1500 liters of water. What factors need to be considered in evaluating the risk of toxicity?
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Use the conceptual framework of risk assessment and consider freshwater criteria.

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