4.1. Defining Flux

Try these first

1. 1.

   What is the key difference between D-NAPL and L-NAPL?

   Hint

   Think about their relationship to water.

2. 2.

   Define diffusion in simple terms.

   Hint

   Think about where a smell spreads in a room.

3. 3.

   What does D-NAPL stand for?

   • Dissolved Non-Aqueous Phase Liquid
   • Dense Non-Aqueous Phase Liquid
   • Decomposed Non-Aqueous Phase Liquid

   Hint

   Think about its behavior in water.

4. 4.

   True or False: L-NAPL will sink below the water surface.

   • True
   • False

   Hint

   Recall the definition of L-NAPL.

5. 5.

   Given a scenario where D-NAPL is introduced into a wetland environment, analyze how it would affect sediment layers several weeks later. Discuss both short-term and long-term impacts.

   Hint

   Think about the movement of chemicals over time and their ecological effects.

6. 6.

   Model the flux of a contaminant leaving a sediment layer into water over time. Consider all influencing factors and make assumptions.

   Hint

   Use mathematical equations discussed to help frame your model.