5.1. Mixing of Air Masses

Try these first

1. 1.

   Define a point source.

   Hint

   Think of an example of emission that comes from a single location.

2. 2.

   What is a dispersion model?

   Hint

   Consider what happens to smoke from a chimney.

3. 3.

   What is a point source?

   • A broad area of emissions
   • A single identifiable source
   • An abstract concept

   Hint

   Think of specific examples of pollution sources.

4. 4.

   True or False: Area sources encompass specific locations.

   • True
   • False

   Hint

   Consider how emissions are spread out versus coming from one point.

5. 5.

   Given two factories located near each other releasing the same pollutant, predict how their emissions might interact based on turbulence and air mass mixing.

   Hint

   What happens when two streams of smoke meet?

6. 6.

   Develop an argument for why using an advanced dispersion model like CALPUFF would be beneficial over using a simpler Gaussian model in urban settings.

   Hint

   Consider the complexities of urban landscapes.