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3 cards from this section. Quick, good the night before a test.
What is a concentration gradient?
Think about how substances move from areas of high to low concentration.
Define D-NAPL.
Consider how it behaves in water.
What drives diffusion?
Think about where the molecules are coming from and going.
True or False: D-NAPL floats on the surface of water.
Consider the definitions of D-NAPL and L-NAPL.
A spill of D-NAPL occurs in a river. Discuss the potential long-term environmental impacts and the challenges involved in remediation.
Consider both ecological and legal perspectives.
Create a model to describe how a contaminant will spread through sediment following a spill. What factors will influence the diffusion rate?
Think about the physical dimensions and properties of the materials.
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