Practice Microscopy For Shape And Morphology (3.2) - Monitoring methods for Air PM - Part 2

Practice: Microscopy for Shape and Morphology

Lesson 3.2Monitoring methods for Air PM - Part 2

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8 questions

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2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is particulate matter?
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Think about what we breathe in every day.
Question 2.
Name one technique used to measure PM.
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Consider methods involving light.
3Question 3.
Which measurement technique uses lasers to size particles?
- Optical
- Gravimetric
- Electrical mobility
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Think of methods that involve vision.
4Question 4.
True or False: Aerodynamic diameter and optical diameter can sometimes be the same.
- True
- False
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Consider their definitions.
Question 5.
Given a sample of particulate matter with varying shapes, outline a method for determining its composition while addressing possible challenges in analysis.
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Consider both instrumental analysis and sample preparation steps.
Question 6.
In a study of air quality, researchers find discrepancies in PM measurements from different sensors. Discuss how standard particles could be employed to calibrate these instruments.
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Think about how ensuring consistency can help resolve discrepancies.

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