1.11. Use of Impactors

Try these first

1. 1.

   What does PM stand for in environmental monitoring?

   Hint

   Think about particles in the air.

2. 2.

   Name one method of measuring particulate matter.

   Hint

   It's related to weighing things.

3. 3.

   What is PM 10?

   • Particles larger than 10 micrometers
   • Particles smaller than 10 micrometers
   • Particles that do not affect air quality

   Hint

   Remember the definition of PM sizes.

4. 4.

   True or False: The function of an impactor is to allow all particles to pass through.

   • True
   • False

   Hint

   Recall how impactors separate particles.

5. 5.

   Design a comprehensive study to assess the levels of PM in urban areas, specifying the types of impactors to use, sampling intervals, and the expected outcomes based on your methods.

   Hint

   Consider both technology and health principles.

6. 6.

   Evaluate the implications of using gravimetric methods in scenarios where PM levels are very low. Discuss strategies to improve accuracy.

   Hint

   Think about what affects weight measures.