Environmental behaviour of selected xenobiotic compounds

Henry s Law constant (tendency to evaporate from soil/water/plant surface into air) 

In the following sections we use physicochemical parameters to assess the environmental behaviour and the tendency for bioaccumulation (Box 7.3) of the compound groups represented in Table 7.3. Several of the compounds considered exhibit varying degrees of endocrine disruption. 

Many factors can control the persistence of a pollutant in a particular reservoir. Although it can be difficult to determine the exact influence of each factor, a useful overall measurement of the environmental persistence 

One of the most thoroughly studied endocrine disrupters is tributyl tin (TBT).Trialkyl tin formulations (e.g. as the chloride salt Fig. 7.12) were widely used in 

The term bioaccumulation is often used to describe the overall build-up of contaminants within the tissues of an organism. However, sometimes more specific terminology is used to reflect the different routes for absorption of contaminants, with bioconcentration used to denote passive absorption through skin or gills, while bioaccumulation is reserved for ingestion of particulates (feeding) and biomagnification is used to describe the cumulative effects over successive trophic levels in a food chain (Franke et al. 1994). 

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