Soil sorption coefficient

Kenaga EE. 1980. Predicted bioconcentration factors and soil sorption coefficients of pesticides and other chemicals. Ecotoxicol Environ Safety 4 26-38. 

ECD Electron capture detection Ko, Kqc Soil sorption coefficients... 

Vapor pressure (VP), water solubility ( w), and soil sorption coefficients Koc) are key properties that govern volatilization of agrochemicals from soil. Volatile compounds such as 5 -ethyl dipropylthiocarbamate (EPTC) (VP 4.5 Pa,... 

Sabljia, A., On the prediction of soil sorption coefficients of organic pollutants from molecular structure application of molecular topology model, Environ. Sci. Technol., 21, 358-366, 1987. 

Bahnick, D. A., Doucette, W. J. (1988) Use of molecular connectivity indices to estimate soil sorption coefficients for organic chemicals. Chemosphere 17, 1703-1715. 

Meylan, W. M., Howard, P. H., Boethling, R. S. (1992) Molecular topology/fragment contribution for predicting soil sorption coefficient. Environ. Sci. Technol. 26, 1560-1567. 

Winget, P., Cramer, C.J., Truhlar, D.G. (2000) Prediction of soil sorption coefficients using a universal solvation model. Environ. Sci. Technol. 34, 4733 1740. 

Pollutants with high VP tend to concentrate more in the vapor phase as compared to soil or water. Therefore, VP is a key physicochemical property essential for the assessment of chemical distribution in the environment. This property is also used in the design of various chemical engineering processes [49]. Additionally, VP can be used for the estimation of other important physicochemical properties. For example, one can calculate Henry s law constant, soil sorption coefficient, and partition coefficient from VP and aqueous solubility. We were therefore interested to model this important physicochemical property using quantitative structure-property relationships (QSPRs) based on calculated molecular descriptors [27]. 

Adsorption to particulate matter will transport disulfoton from water to suspended solids and sediment in water. The estimated organic carbon-adjusted soil sorption coefficient (K°<=) for disulfoton varies between 600 and 1,603 (Jury et al. 1987a Rao and Davidson 1982 Wauchope et al. 1992). This, range of K°= values suggests that disulfoton in water absorbs moderately to suspended solids and sediments (Swann et al. 1983), and this process may transport considerable amounts of disulfoton from water to particulate matter. 

Sacan MT, Balcioglu IA. 1996. Prediction of the soil sorption coefficient of organic pollutants by the characteristic root index model. Chemosphere 32 1993-2001. 

Cho, E.H. and Park, J.H. Prediction of soil sorption coefficients for organic nonelectrolytes from solvatochromic parameters. Bull. Korean Chem. Soc., 16(3) 290-293, 1995. 

Sabljic, A. and Protic, M. Relationship between molecular cormectivity indices and soil sorption coefficients of polycyclic aromatic hydrocarbons, 5 //. Environ. Contam. Toxicol., 28(2) 162-165, 1982. 

Liao, Y.-Y., Wang, Z. T., Chen, J.-W.. Han. S.-K.. Wang. L. S.. Lu. G. Y.. and Zhao. T.-N. The prediction of soil sorption coefficients of heterocyclic nitrogen compounds by octanol/water partition coefficient, water solubility, and by molecular connectivity indices. Bull Environ. Contam. Toxicol, 56(5) 711-716. 1996. 

Okouchi, S., and H. Saegusa, Prediction of Soil Sorption Coefficients of Hydrophobic Organic Pollutants by Adsorbability Index. Bull. Chem. Soc. Jpn., 1989 62, 922-924. 

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