1.1. Contamination of Sediments

Try these first

1. 1.

   What does D-NAPL stand for?

   Hint

   Think about density in relation to water.

2. 2.

   What happens to L-NAPL after a spill in water?

   Hint

   Consider the relationship of L-NAPL to water density.

3. 3.

   What is the primary characteristic of D-NAPLs?

   • They float on water
   • They sink to the bottom
   • They dissolve easily

   Hint

   Consider their density in relation to water.

4. 4.

   True or False: L-NAPLs are denser than water.

   • True
   • False

   Hint

   No hint provided

5. 5.

   A D-NAPL is released in a river. Describe the process from deposition to plume formation over 20 years, including factors that affect diffusion.

   Hint

   Think about how time and water flow change chemical locations.

6. 6.

   Analyze the implications of historical sediment contamination on current environmental policies and civil liability.

   Hint

   Consider how laws might change in response to pollution evidence.