Air Quality Engineering: Mass Transport and Diffusion Modeling

Understanding how pollutants travel and disperse in the atmosphere is essential for designing sustainable cities and protecting public health. This course provides a clear, step-by-step introduction to the physics and mathematics behind air quality modeling. You will learn how to apply mass transport and diffusion principles to predict how chemical plumes spread from sources like highways and industrial areas. By reading through practical scenarios and working with foundational equations, you will gain the skills needed to evaluate spatial variations in air pollution. What you'll learn: - Understand the core principles of mass transport, advection, and molecular and turbulent diffusion. - Model chemical plume dispersion from line sources, such as vehicle traffic on busy roadways. - Calculate spatial variations in pollutant concentration using standard atmospheric dispersion equations. - Apply modern environmental standards and air quality index frameworks to evaluate model outputs. - Practice setting up boundary conditions and simplifying assumptions for real-world environmental scenarios. The course starts with fundamental definitions of mass transport and fluid flow before guiding you through the derivation and application of plume dispersion models. You will progress from basic physical concepts to analyzing complex, multi-source environmental scenarios through written explanations and structured calculations. Designed for beginners in environmental engineering, urban planning, or sustainability studies, this course requires no prior modeling experience. Begin reading today to build your foundational skills in air quality analysis and environmental modeling.