Fate and Transport Models

In the following section we provide general background information about mathematical descriptions of phase partitioning of chemicals, mechanisms of their transfer between and within environmental media, and degradation, also introducing the most common mathematical representations of the processes described. Eventually, such representations are combined in a general equation used for fate and transport modeling: the advection – dispersion – reaction equation (ADRE). The processes described by the ADRE are very general; depending on the specific medium (soil, water, air) where they take place, the different terms of the equation are represented differently. In a subsequent section, we describe specific cases of the ADRE in relation to surface water, soil/groundwater, air, which are the domains where it is normally solved. For each case, we introduce some examples of publicly available computing codes that solve the equation. In the last section, we introduce multimedia/multispecies fate and transport of chemicals using linear box models.

PISTOCCHI Alberto; 

2009-02-02

John Wiley and Sons

JRC36332

978-0-470-03549-8,