Practice Emission Factor And Dispersion Problem (1.2) - Air-Water Exchange

Practice: Emission Factor and Dispersion Problem

Lesson 1.2Air-Water Exchange

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9 questions

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Exercise
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6 sample questions

Question 1.
Define Emission Factor.
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Think of how emissions are quantified.
Question 2.
What does a Dispersion Model do?
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Consider how pollutants behave after they are released.
3Question 3.
What is the main purpose of the emission factor?
- To measure noise
- To quantify emissions
- To calculate financial losses
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Consider what emissions are associated with different activities.
4Question 4.
True or False: The Gaussian dispersion equation can only predict concentrations at ground level.
- True
- False
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Recall different heights we calculate for dispersion.
Question 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.
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Use the Gaussian formula to plug in values for q, σy, and σz.
Question 6.
Discuss how you would approach modeling the dispersion of pollutants in a stable atmosphere as opposed to an unstable one.
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Focus on how atmosphere stability impacts mixing and dispersion.

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