1.7. Sampling of PM

Try these first

1. 1.

   What does PM stand for?

   Hint

   Think about what is measured when we talk about air quality.

2. 2.

   Name one method used for sampling PM.

   Hint

   Consider the devices designed to separate particles by size.

3. 3.

   What is PM10?

   • A) Particles smaller than 10 micrometers
   • B) Particles larger than 10 micrometers
   • C) Only liquid droplets

   Hint

   Focus on the size classification of PM.

4. 4.

   True or False: Gravimetric measurements can accurately assess small particles.

   • True
   • False

   Hint

   Consider the method's limitations.

5. 5.

   Design a study that evaluates PM levels in a local industrial area. What parameters would you set for sampling, resolution, and expected outcomes?

   Hint

   Consider what factors influence PM levels and how you'd measure them.

6. 6.

   Calculate the total mass of PM collected over a 24-hour sampling period if the flow rate is 5 L/min and the total volume of air sampled is 7200 L.

   Hint

   Use your knowledge of volume to calculate overall mass.