Toxic Metal Absorptivity to Agriculture Soil

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dc.contributor.authorChamara, M.A.N.
dc.contributor.authorCooray, J.T.
dc.contributor.authorAttanayake, A.N.B.
dc.date.accessioned2022-02-08T09:34:29Z
dc.date.available2022-02-08T09:34:29Z
dc.date.issued2015
dc.description.abstractSoil contamination has increased by several folds within the recent past due to various man made activities. Various types of toxics involve in the processes of making contaminated soil profiles. There are many toxic metals and chemical complexes which contaminate soils. When toxic agents contact with soils they may absorb or adsorb in to the soil structure depending on their structural and physical properties. One of the major sources of contaminant is agrochemicals. Due to expansion of agricultural practices and over use of agrochemicals (pesticides, weedicides, insecticides, fungicides and others) the effect has become adverse. Sri Lanka is covered with versatile range of soils with highly contrast physical properties. In this study, soil samples from different agricultural areas in Badulla district have been used to determine their quantity of toxic metal absorptivity quantitatively. Method Five areas were selected where there are many types of agricultural activities. Uncontaminated samples were collected from these farms (Mirigama, Passara, Badulla Bandarawela and Welimada). Soil properties like moisture content, soil pH, bulk density, hydraulic conductivity, soil porosity were studied in order to categorize the soil types. Soil columns were made for these samples and metal absorptivity was studied by adding Roundup pesticide (which is heavily used agrochemical in the area). Concentration of the agrochemical was kept at its normal dosage. Original agrochemical was fully studied with ASS to identify the containing metal ions and the obtained leachates were also measured for the same set of metal ions to confirm their soil absorptivity under specific time period. Obtained AAS results interpreted to identify the correlations between soil properties and toxic metal absorptivity.en_US
dc.identifier.isbn9789550481088
dc.identifier.urihttp://www.erepo.lib.uwu.ac.lk/bitstream/handle/123456789/8319/75-MRT-Toxic%20Metal%20Absorptivity%20to%20Agriculture%20Soil.pdf?sequence=1&isAllowed=y
dc.language.isoenen_US
dc.publisherUva Wellassa University of Sri Lankaen_US
dc.subjectMaterials Sciencesen_US
dc.subjectMineral Sciencesen_US
dc.subjectSoil Scienceen_US
dc.subjectAgricultureen_US
dc.titleToxic Metal Absorptivity to Agriculture Soilen_US
dc.title.alternativeResearch Symposium 2015en_US
dc.typeOtheren_US
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