Abstract
Transport of contaminants through soil is affected by several transformation and transport processes which include advection, diffusion, dispersion and chemical reactions. These processes simultaneously influence the migration pattern of contaminants in the subsurface. The physical and mathematical definitions of these transformation and transport processes are covered in detail in Chapters 2 and 3 of this book using conservation principles as they apply to air, surface water and groundwater pathways. The mathematical definitions of these models and their associated initial and boundary conditions that may be used for the closure of these models have also been covered in technical publications in the literature. In this chapter we will use the mathematical definitions of these physical, chemical and biologic processes to describe several analytical models that are frequently used for dissolved phase contaminant transport analysis in the groundwater pathway. The goal is to bring this vast amount of literature together in a cohesive manner and to discuss the limitations and applications of these models while providing a user friendly computational platform to implement these models both in deterministic and stochastic analysis mode. Thus, as is the case for all other environmental pathway models covered in this book, all groundwater pathway models that are discussed in this chapter are included in the ACTS software for use in both deterministic and stochastic (Monte Carlo) based applications.
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Aral, M.M. (2010). Groundwater Pathway Analysis. In: Environmental Modeling and Health Risk Analysis (Acts/Risk). Springer, Dordrecht. https://doi.org/10.1007/978-90-481-8608-2_5
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