3. Measurement Techniques

Try these first

1. 1.

   What is the soil-air interface?

   Hint

   Think about where soil meets the air.

2. 2.

   Why is core sampling important?

   Hint

   Recall the techniques we discussed earlier.

3. 3.

   What is the primary technique for measuring contaminant concentrations in the soil?

   • Core Sampling
   • Mass Spectrometry
   • Gas Chromatography

   Hint

   Think about how we obtain soil samples.

4. 4.

   Flux is defined as the rate at which a substance passes through what?

   • Unit area
   • Water only

   Hint

   Remember what flux evaluates.

5. 5.

   You are measuring flux at a soil-air interface. If measurements show a 10% increase in contaminant concentration with a corresponding 5% increase in area covered, calculate the new flux.

   Hint

   Use basic percentage increase formulas.

6. 6.

   Design a long-term study to monitor flux changes during seasonal variations. What parameters do you need to consider?

   Hint

   Seasonal changes should influence your measurements; plan accordingly.