3.1. Cascade Impactor Design

Try these first

1. 1.

   What does PM stand for?

   Hint

   Think about what is in the air that could be measured.

2. 2.

   Name one type of particulate matter measured by a cascade impactor.

   Hint

   These are classifications based on particle size.

3. 3.

   What is a cascade impactor primarily used for?

   • Measuring humidity
   • Measuring particulate matter
   • Measuring temperature

   Hint

   Think about what we discussed regarding air pollution.

4. 4.

   True or False: PM2.5 can have a diameter greater than PM10.

   • True
   • False

   Hint

   Recall how we categorized PM based on size.

5. 5.

   A cascade impactor collects 500 micrograms of PM2.5 over a sampling period of 12 hours at a flow rate of 20 L/min. Calculate the concentration of PM2.5 in micrograms per cubic meter.

   Hint

   Convert hours to minutes and liters to cubic meters for accurate calculations.

6. 6.

   Discuss the implications of using real-time monitoring technology in urban air quality management versus traditional sampling methods.

   Hint

   Consider how immediate data affects decision-making in pollution control.