Practice Electrical Mobility (3.1) - Introduction to Source Apportionment and Chemical Composition

Practice: Electrical Mobility

Lesson 3.1Introduction to Source Apportionment and Chemical Composition

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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
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6 sample questions

Question 1.
Define source apportionment.
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Think about why we need to know where pollution comes from.
Question 2.
What does PM10 stand for?
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It refers to the size of the particles.
3Question 3.
What does PM2.5 refer to?
- Particulate matter >= 2.5 micrometers
- Particulate matter < 2.5 micrometers
- Particulate matter = 2.5 micrometers
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Focus on the '<' symbol when recalling sizes.
4Question 4.
Are nanoparticles often derived from vehicle emissions?
- True
- False
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Think about where many small particles come from in a city.
Question 5.
Design an experiment using a DMA to classify particulate matter from urban emissions. What factors will you consider?
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Reflect on how voltage affects particle selection.
Question 6.
Evaluate the impact of ultrafine particles on public health in urban areas. What data would you need to analyze?
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Think about sources of data and health studies.

4 more questions in this section. Enroll free to practise them all.