2.2.1.2. Biogeochemical Impacts of Capping

Try these first

1. 1.

   What does it mean for sediments to be contaminated?

   Hint

   Consider what industries might release harmful substances.

2. 2.

   Define Monitored Natural Recovery.

   Hint

   Think of natural processes that break down pollutants.

3. 3.

   What is monitored natural recovery?

   • A strategy to remove sediments
   • A passive approach to allow natural remediation
   • An active intervention method

   Hint

   Think about how nature might solve pollution issues.

4. 4.

   True or false: In-situ capping can potentially disrupt the existing ecosystem.

   • True
   • False

   Hint

   Consider what happens when you cover something up.

5. 5.

   Evaluate the effectiveness of in-situ capping versus monitored natural recovery in a hypothetical coastal environment affected by refractory chemicals.

   Hint

   Consider the specific properties of the chemicals involved and their degradation timelines.

6. 6.

   Propose an integrated management strategy for a region heavily polluted by coastal industrial activities, outlining the role of dredging, MNR, and in-situ capping.

   Hint

   Think about environmental balances and impacts beyond just the sediments themselves.