5.2. Rate of Accumulation

Try these first

1. 1.

   What is advection?

   Hint

   Think about how wind affects the location of pollutants.

2. 2.

   What does dispersion refer to?

   Hint

   Consider how pollutants mix with the air.

3. 3.

   What does advection refer to?

   • Movement by diffusion
   • Horizontal movement by wind
   • Vertical temperature change

   Hint

   Think about air traveling and how it carries pollutants.

4. 4.

   True or False: Stability in the atmosphere helps pollutants rise.

   • True
   • False

   Hint

   Consider what happens to air when it is stable.

5. 5.

   A factory emits pollutants at ground level in a stable air mass. Discuss how this affects the accumulation of pollutants in surrounding residential areas.

   Hint

   Consider how temperature inversions can trap pollutants.

6. 6.

   Given an environmental lapse rate of -0.006 °C/m, analyze how this compares with the adiabatic lapse rate and its implications for pollutant dispersion.

   Hint

   Think about what happens to air parcels that don’t cool as quickly as they rise.