2. Gaussian Dispersion Model
The chapter provides an overview of dispersion modeling, focusing on emission rates calculated from the emission factor and activity rate. It emphasizes the importance of accurately measuring various pollutants from different combustion sources, including stationary and mobile sources. Furthermore, the discussion introduces fugitive emissions and their unique challenges, outlining how to estimate emissions and the impact of reflection on dispersion modeling.
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What we have learnt
- Emission rates are crucial for understanding the pollution potential of different processes.
- Emission factors vary across different pollutants and regions, necessitating local analysis.
- Gaussian dispersion models can account for multiple sources and environmental reflections in estimating pollutant concentrations.
Key Concepts
- -- Emission Rate
- The calculated rate at which pollutants are discharged from a source, derived from the emission factor and the activity rate involved.
- -- Emission Factor
- A numerical value representing the amount of pollutants produced per unit of activity, often determined through measurement and research.
- -- Fugitive Emissions
- Unplanned emissions that occur from leaks or other unintended releases from equipment or processes.
- -- Gaussian Dispersion Model
- A mathematical model used to estimate the distribution of pollutants in the air, factoring in parameters such as wind speed and source height.
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