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HEAVY METALS SPECIATION IN SEDIMENTS OF A MEXICAN TROPICAL LAKE
J. Badillo-Camacho, J.O. Murillo-Delgado, I.D. Barcelo-Quintal, P.F. Zarate del Valle, E. Orozco-Guareño, U.J. López-Chuken, S. Gomez-Salazar;
Revista Mexicana de Ingeniería Química 2016 15(2)
Resumen
Inglés Español
Heavy metals speciation of Mexican Lake Chapala sediments was studied using sequential extraction to assess their mobility. Mineralogical constitution of sediments was studied by XRD. Results show Pb and Cr present in exchangeable and carbonate fractions indicating anthropogenic origin. Risk Assessment Code indicates low risk of pollution for water column. XRD results indicate mineralogy of Lake Chapala sediments present spatial variation. Presence of Pb and Cr in exchangeable and carbonate fractions suggests heavy metals pollution control not e ective by corresponding authorities.

Palabras clave: Sediments, toxic metals, speciation, lake pollution.
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Universidad Autónoma del Estado de México
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