2.5. Methodology of Sampling

Try these first

1. 1.

   What is grab sampling?

   Hint

   Think about how we take a quick snapshot of something.

2. 2.

   What does an adsorbent do?

   Hint

   It’s a material that sticks to particles.

3. 3.

   What is the primary purpose of grab sampling?

   • To capture a snapshot of the atmosphere
   • To collect rainwater samples
   • To determine soil quality

   Hint

   Think about environmental monitoring.

4. 4.

   True or False: Solvent extraction is preferred over thermal desorption for analyzing volatile organic compounds.

   • True
   • False

   Hint

   Consider which method is less prone to sample contamination.

5. 5.

   Suppose you are conducting a long-term air quality study. Describe how you would set up your sampling methodology to prevent breakthrough and maintain sample integrity.

   Hint

   Draw on what you've learned about flow rates and timing.

6. 6.

   Analyze the advantages and disadvantages of using solvent extraction as opposed to thermal desorption for air samples.

   Hint

   Think about the processes and how each method affects the results.