1.1. Vapor – Part 1

Try these first

1. 1.

   What is grab sampling?

   Hint

   Think about when you'd take a quick sample.

2. 2.

   Name one type of equipment used in vapor sampling.

   Hint

   Think about the tools used for gas collection.

3. 3.

   What is vapor phase?

   • Solid state of a substance
   • Gaseous state of a substance
   • Liquid state of a substance

   Hint

   Think of evaporation.

4. 4.

   True or False: Grab sampling can be effective for all concentrations.

   • True
   • False

   Hint

   Consider when you would need to collect samples.

5. 5.

   Design a vapor sampling plan for an urban area with both high pollution and areas of low background concentrations. Identify what sampling strategy you would use and justify your choices.

   Hint

   Consider the expected concentrations and environment in urban settings.

6. 6.

   Analyze the pros and cons of using plastic tedlar bags versus stainless steel canisters for vapor sampling in terms of contamination and reliability.

   Hint

   Reflect on material properties and concerns regarding contamination.