2.2. Sources of Nanoparticles

Try these first

1. 1.

   What is source apportionment?

   Hint

   Think about how we find out where pollution comes from.

2. 2.

   Define ultra-fine particulate matter.

   Hint

   What is considered very small in terms of particle size?

3. 3.

   What is the primary purpose of source apportionment?

   • To identify pollution sources
   • To measure wind speed
   • To analyze weather patterns

   Hint

   Think about pollution in the urban environment.

4. 4.

   True or False: Scattering diameter and aerodynamic diameter are the same.

   • True
   • False

   Hint

   Consider how each measurement relates to health impacts.

5. 5.

   Given a scenario where urban pollution comes from multiple sources, explain how you would use source apportionment data to recommend policy changes for air quality improvement.

   Hint

   What strategies would target the identified sources?

6. 6.

   Design an experiment using differential mobility analyzers to track seasonal changes in ultra-fine particulate matter concentrations in a city.

   Hint

   What factors would you include in your experiment?