Adsorption-desorption and leaching behavior of diuron on selected Kenyan agricultural soils

Shikuku, Victor Odhiambo; Muendo, Boniface M.; Getenga, Zachary M.; Lalah, Joseph O.; Wandiga, Shem O.; Rothballer, Michael

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dc.contributor.author	Shikuku, Victor Odhiambo
dc.contributor.author	Muendo, Boniface M.
dc.contributor.author	Getenga, Zachary M.
dc.contributor.author	Lalah, Joseph O.
dc.contributor.author	Wandiga, Shem O.
dc.contributor.author	Rothballer, Michael
dc.date.accessioned	2021-08-10T12:13:17Z
dc.date.available	2021-08-10T12:13:17Z
dc.date.issued	2021
dc.identifier.citation	Albers, C.N., Banta, G.T., Hansen, P.E., Jacobsen, O.S., 2008. Effect of different humic substances on the fate of diuron and its main metabolite 3,4-dichloroaniline in soil. Environ. Sci. Technol. 42, 8687–8691. Burns, M., Crossan, A.N., Kennedy, I.R., Rose, M.T., 2008. Sorption and desorption of endosulfan sulfate and diuron to composted cotton gin trash. J. Agric. Food Chem. 56, 5260–5265. Chaplain, V., Brault, A., Tessier, D., Defossez, P., 2008. Soil hydrophobicity: a contribution of diuron sorption experiments. Eur. J. Soil Sci. 59, 1202–1208. Chapman, H.D., 1965. Black. Methods of Soil Analysis, Agron. Ser. No. 9. Am. Soc. Agron., Madison, WI, p. 891. Conde-Cid, M., Fernandez-Calvino, D., Novoa-Munoz, J.C., Nunez-Delgado, A., Fernandez-Sanjurjo, M.J., Arias-Estevez, M., Alvarez-Rodriguez, E., 2019. Experimental data and model prediction of tetracycline adsorption and desorption in agricultural soils. Environ. Res. 177, 108–607. Day, P.R., 1965. In: Black, C.A. (Ed.), Methods of Soil Analysis, Agron. S	en_US
dc.identifier.uri	http://erepository.kafuco.ac.ke/123456789/90
dc.description.abstract	In this work, the adsorption-desorption dynamics of diuron in three typical Kenyan agricultural soils, Nzoia (NZ), Thika (TH) and Machakos (MK) was investigated. The equilibrium adsorption data, tested against three classical\ nonlinear adsorption isotherms, was best described by the Freundlich model. The Freundlich adsorption constant, (KF), increased in the order MK > TH > NZ soil. Additionally, the negative Gibb's free energy values indicate the adsorption processes were thermodynamically spontaneous and physical. Multiple linear regression analysis indicated that the adsorption-desorption behavior was controlled by the clay and phosphorus contents of the soil. Phosphorus negatively affected the adsorption of diuron and promoted desorption. The groundwater ubiquity score (GUS) indicated that diuron movement rating in MK soil was ‘moderate’ while the movement in TH and NZ soils was ‘high’.	en_US
dc.description.sponsorship	International Foundation for Science (IFS) and the Organization for the Prohibition of Chemical Weapons	en_US
dc.language.iso	en	en_US
dc.publisher	Kenya Bureau of Standards	en_US
dc.subject	Diuron Adsorption Desorption Leaching Soil	en_US
dc.title	Adsorption-desorption and leaching behavior of diuron on selected Kenyan agricultural soils	en_US
dc.type	Article	en_US