4.3. Aerodynamic Particle Sizer

Try these first

1. 1.

   What does PM stand for?

   Hint

   Think about what is in the air that we can measure.

2. 2.

   Which sampler is designed for long-term collection of PM 2.5?

   Hint

   Consider which sampler targets smaller particles.

3. 3.

   What does PM 2.5 refer to?

   • Particles larger than 10 microns
   • Particles less than or equal to 2.5 microns
   • Particles larger than 2.5 microns

   Hint

   Think about the size and its impact on health.

4. 4.

   True or False: High volume samplers are used for measuring short-term air quality.

   • True
   • False

   Hint

   Consider how long can these samples last.

5. 5.

   A city is looking to improve its PM 2.5 measurements. Propose a plan including the types of samplers and any real-time technologies needed.

   Hint

   Consider both accuracy and response time in your plan.

6. 6.

   Analyze the impact of using cascaded samplers on particle research accuracy. What could be the trade-offs?

   Hint

   Think about the balance between detail and immediacy in data collection.