12. Transport of Pollutants – Dispersion
The chapter highlights the transport of pollutants in the atmosphere, discussing stability conditions that influence dispersion. It covers the significance of environmental and adiabatic lapse rates, detailing how they affect pollutant behavior through various plume shapes under different turbulence scenarios. Additionally, the chapter explains the concepts of mixing height and different pollution sources, emphasizing their role in environmental engineering.
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Sections
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What we have learnt
- Understanding of unstable, neutral, and stable atmospheric conditions and their role in pollutant dispersion.
- Knowledge of how adiabatic and environmental lapse rates influence pollutant behavior.
- Familiarity with different plume shapes including looping, coning, fanning, fumigation, lofting, and trapping.
Key Concepts
- -- Pollutant Dispersion
- The spreading of a pollutant in the atmosphere, influenced by factors such as wind speed and atmospheric stability.
- -- Lapse Rate
- The rate at which temperature changes with altitude, critical in determining the behavior of pollutants.
- -- Mixing Height
- The height at which pollutants are mixed in the atmosphere, influenced by environmental and adiabatic lapse rates.
- -- Plume Shape
- The visual representation of how pollutants travel through the atmosphere, which can take on various shapes such as looping, coning, or fanning.
Additional Learning Materials
Supplementary resources to enhance your learning experience.