1.4. Dispersion Exercise

Try these first

1. 1.

   What does an emission factor represent?

   Hint

   Think of how much gas a car uses!

2. 2.

   Define mixing height.

   Hint

   Consider where smoke and air blend.

3. 3.

   What is an emission factor?

   • Amount of pollutant per mile
   • Amount of pollutant per unit activity
   • Amount of pollutant in water

   Hint

   Think about activities that contribute to pollution.

4. 4.

   Is the mixing height always the same for different pollutants?

   • True
   • False

   Hint

   Consider why smoke and water vapor rise differently.

5. 5.

   Calculate the mixing height for a pollutant released at various temperatures using real data for environmental and adiabatic lapse rates. Discuss how varying temperatures would affect the results.

   Hint

   Use the graphical methods we practiced in class.

6. 6.

   Describe a multi-source dispersion scenario involving industry, agriculture, and transportation pollution. Discuss how you would model this using the Gaussian model.

   Hint

   Consider interactions and distance effects on pollution levels!