Multimedia fugacity models level

LEV3EPI Level in multimedia fugacity model predicts partitioning of chemicals among air, soil, sediment, and water under steady-state conditions for a default model "environment"... 

Mackay D, Paterson S (1991) Evaluating the multimedia fate of organic chemicals a level III fugacity model. Environ Sci Technol 25 427-436... 

Multimedia environmental models often incorporate the concept of fugac-ity into mass balance calculations. As pioneered by Dr. Donald Mackay and described in Table 2.3, fugacity models can reflect four levels of sophistication [64]. Level III fugacity models are commonly used to describe the fate and transport of a chemical released to the environment that undergoes degradation and advective transport between compartments. One such model is described below. 

Level I Model The components of a multimedia model are illustrated in the schematic (Fig. 10.10) with the four major compartments being, air, water, sediment, and soil. The equilibrium distribution of a fixed quantity of chemical among these compartments is defined by the Level 1 model, and by definition, the fugacities in each compartment would be equal... 

In this chapter, we have explored the mechanism behind the high mobility of chemicals emitted into lu ban areas. Films on impervious siu faces, and of course the surfaces themselves, promote high export rates of emitted chemicals by air advection or transfer of atmospherically deposited chemicals into siu face waters via storm water runoff, rather than sequestration in the urban environment itself. We illustrate this quantitatively using the ftigacity-based multimedia lu ban model or MUM (Diamond et al., 2001 Priemer and Diamond, 2002 Jones-Otazo et al., 2005 Diamond et al., 2010). MUM is a seven-compartment fugacity Level HI model. The model is coded in Visual Basic and is run on a PC in a Windows environment. 

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