1.2. Emission Factor and Dispersion Problem

Try these first

1. 1.

   Define Emission Factor.

   Hint

   Think of how emissions are quantified.

2. 2.

   What does a Dispersion Model do?

   Hint

   Consider how pollutants behave after they are released.

3. 3.

   What is the main purpose of the emission factor?

   • To measure noise
   • To quantify emissions
   • To calculate financial losses

   Hint

   Consider what emissions are associated with different activities.

4. 4.

   True or False: The Gaussian dispersion equation can only predict concentrations at ground level.

   • True
   • False

   Hint

   Recall different heights we calculate for dispersion.

5. 5.

   Calculate the concentration of a pollutant at a distance of 500m from a source with an emission factor of 200 kg/hour and dispersion coefficients of σy = 10m and σz = 5m.

   Hint

   Use the Gaussian formula to plug in values for q, σy, and σz.

6. 6.

   Discuss how you would approach modeling the dispersion of pollutants in a stable atmosphere as opposed to an unstable one.

   Hint

   Focus on how atmosphere stability impacts mixing and dispersion.