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UTOMOT= CASOLIVE 65-11 <br /> TALE 65-2 - Gontinued <br /> GASOLI`TF DDITT"Sa <br /> �a�3 ' Inhibitors <br /> KIL-1-25017/QPL-25017" <br /> Carboxylic acids <br /> Phosphoric. acids <br /> Sulfonic acids <br /> + 'References 1409,2325,2326.2327,2328.1847 <br /> Compouns addressed in other chapters of IHP Toxicology Guide <br /> cd <br /> As cited in 2328 <br /> 65.2 ENVIRONMENTAL FATE kND MOSURE PATHUAYS <br /> In this chapter, the discussions of the environmental behavior of <br /> gasoline will be limited to a discussion of its major components: the <br /> environmental behavior of the crate elements and the many diverse <br /> additives will not specifically be addressed. Many of the hydrocarbons <br /> characteristics of gasoline have been addressed previously in Cha more <br /> extensive environmental fate searion of the JP.4 chapter since these <br /> hydrocarbons are common co both petroleum foals. The general <br /> discussions of aliphatic and aromatic hydrocarbons and chair behavior <br /> in soil/ground-water systems will noe be repedted here: the reader is <br /> referred to the relevant sections of Chapter 64. <br /> �. Transport and transformation of individual gasoline constituents <br /> will. depend on the physicochemical (and biological) properties of the <br /> constituents. Some constituents will dissolve more quickly (in the <br /> Percolating ground waters) , be sorbed less strongly on the soils (thus <br /> being transported more rapidlv) , and may be more or Less susceptible to <br /> degradation by chemical or biological action. Thus, as shown in Figure <br /> 65-1. the relative concentrations of the constituents of the fuel will <br /> ;-e vary with Ciao and distance from the site of contamination. This <br /> '� . effect is called "veachering." (This teras is also used co describe the <br /> changes to oil following spills into surface waters Where film <br /> spreading and breakup, and differential volatilization. dissolution and <br /> degradation are all involved.) <br /> 65.2.1 Transport in Soil/Ground-water Systems <br /> 65.2.1.1 Equilibrium Partitioning nodal <br /> In general, soil/ground-watar transport pathways for low <br /> concentrations of pollutants in soil can be assessed by using an <br /> equilibrium partitioning model. For the purposes of assessing Cha <br /> envirorsmental transport of automotive gasoline, a group of specific <br /> 6/87 <br /> r. <br /> �T <br />