6.2. Statistical Considerations

Try these first

1. 1.

   What is gravimetric measurement?

   Hint

   Think about what gravimetric means in terms of weight.

2. 2.

   Name one technique used for measuring PM.

   Hint

   Consider both light and weight.

3. 3.

   What does gravimetric measurement involve?

   • A. Light scattering methods
   • B. Weighing collected particulate matter
   • C. Analyzing air temperature

   Hint

   What is gravimetric related to in terms of weight?

4. 4.

   True or False: Optical techniques provide immediate results for air quality assessment.

   • True
   • False

   Hint

   Think about the speed of results from these methods.

5. 5.

   Design an experiment to compare the mass of PM measured by a gravimetric method against an optical method at a roadside location.

   Hint

   Focus on ensuring that conditions for both measurements are identical.

6. 6.

   Evaluate the effectiveness of different types of filters in PM collection and their impact on data quality.

   Hint

   What happens if a filter leaches into the collected particles?