Concentration of elements in suspended matter discharges to Lerma River,Mexico |
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| Authors: | P Avila-Pérez G Zarazúa L Carapia S Tejeda I Barceló-Quintal T Martinez |
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| Institution: | 1.Instituto Nacional de Investigaciones Nucleares, Gerencia de Ciencias Ambientales,México,México;2.División de Estudios de Posgrado e Investigación,Instituto Tecnológico de Toluca,Metepec,México;3.Instituto Nacional de Investigaciones Nucleares, Gerencia de Ciencias Aplicadas,México,México;4.Unidad Azcapotzalco, Departamento de Ciencias Básicas,Universidad Autónoma Metropolitana,México,México;5.Facultad de Quimica,Universidad Nacional Autónoma de México,México,Mexico |
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| Abstract: | The S, K, Ca, Ti, V, Cr, Mn, Fe, Cu, Zn and Pb concentration and the elemental composition of particles in suspended matter
from principal discharges to Lerma River, have been evaluated. The elemental concentration in suspended matter has been obtained
by Energy Dispersive X-Ray Fluorescence Spectrometry. The elemental composition of particles has been obtained by means of
Energy Dispersive X-Ray Spectrometry (EDS). The results show that K, Ca, Ti, Mn and Fe are mainly from natural origin in the
Upper Course of the Lerma River (UCLR), where the principal contributions probably come from dragging of soils and sediments
in the rainy season and Cr, Cu, Zn and Pb are mainly from anthropogenic origin where the principal contributions come from
urban and industrial untreated discharge. The application of Energy Dispersive X-Ray Spectrometry plus Scanning Electron Microscopy
is useful in the characterization of suspended matter in natural, anthropogenic and mixed water discharges. |
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