3.1. Measurement of Environmental Lapse Rate

Try these first

1. 1.

   What is the environmental lapse rate?

   Hint

   Think about temperature changes with altitude.

2. 2.

   What happens during stable atmospheric conditions?

   Hint

   This can lead to high concentration levels.

3. 3.

   What is the typical value of the dry adiabatic lapse rate?

   • 6.5°C/km
   • 9.8°C/km
   • 5.2°C/km

   Hint

   Recall the standard value for dry air.

4. 4.

   True or False: In neutral atmospheric conditions, pollutants will rise indefinitely.

   • True
   • False

   Hint

   Consider what neutral conditions imply for air movement.

5. 5.

   If the environmental lapse rate at a certain location is measured multiple times during the day and averages 7°C/km, how would this influence afternoon pollutants dispersal compared to morning when it's averaging 5°C/km?

   Hint

   Consider the implications of air temperature change over time.

6. 6.

   Given that pollutants are most concentrated near the ground level during stable conditions, propose an air quality management strategy to address this issue.

   Hint

   Think about how stability affects air quality and how management actions can mitigate effects.