4.2.1. Concentration at Z and Y

Try these first

1. 1.

   What is the steady-state assumption?

   Hint

   Think about how pollution levels change over time.

2. 2.

   Define mass conservation in the context of pollutants.

   Hint

   Focus on the balance of inputs and outputs.

3. 3.

   What does the steady-state assumption imply?

   • Concentration varies constantly
   • Concentration is the same over time
   • Concentration is variable in space

   Hint

   Remember how pollutants behave over time.

4. 4.

   Is mass conservation applicable in pollutant dispersion?

   • True
   • False

   Hint

   Think about laws of physics related to mass.

5. 5.

   Design a pollutant dispersion study for an industrial area with varying stack heights. How would you implement the Gaussian model?

   Hint

   Consider how height affects emission spreads.

6. 6.

   Evaluate the effect of a sudden change in emission rate on steady-state assumptions and predict the resulting concentration dynamics.

   Hint

   Think about the implications of changing sources on steady assumptions.