Recent trace metal enrichment and sediment quality assessment in an anthropized coastal lagoon (SE Gulf of California) from 210Pb-dated sediment cores
Por:
Ontiveros-Cuadras J.F., Ruiz-Fernández A.C., Pérez-Bernal L.H., Serrato de la Peña J.L., Sanchez-Cabeza J.-A.
Publicada:
1 ene 2019
Resumen:
Concentrations and enrichment of major (Na, Al and Cl) and trace (V, Mn, Fe, Ni, Cu, Zn, As, Br, Mo, Hg, Pb and U) elements were evaluated in 210Pb-dated sediment cores from saltmarsh areas surrounding an anthropized lagoon at southeastern Gulf of California. A chemometric approach was used to identify the sedimentary processes that control the variability of elements among the cores; and the elemental fluxes were compared among coring sites on the basis of historical urbanization and industrial development in the area. The highest fluxes and excess concentrations of V, Ni, Hg and Pb were observed after 1960 in cores EUI and EUIII, and in 1980 at EUII. In general, the historical trends of metal enrichment coincide with the growth of urban and industrial developments around the lagoon, and particularly with the beginning and full operation of a thermoelectric power plant in 1980s. © 2019 Elsevier Ltd
Filiaciones:
Ontiveros-Cuadras J.F.:
Universidad Nacional Autónoma de México, Unidad Académica Procesos Oceánicos y Costeros, Instituto de Ciencias del Mar y Limnología, Ciudad Universitaria, Coyoacán, 04510, Mexico
Ruiz-Fernández A.C.:
Universidad Nacional Autónoma de México, Unidad Académica Mazatlán, Instituto de Ciencias del Mar y Limnología, Calz. Joel Montes Camarena s/n, Mazatlán, 82040, Mexico
Pérez-Bernal L.H.:
Universidad Nacional Autónoma de México, Unidad Académica Mazatlán, Instituto de Ciencias del Mar y Limnología, Calz. Joel Montes Camarena s/n, Mazatlán, 82040, Mexico
Serrato de la Peña J.L.:
Universidad Nacional Autónoma de México, Posgrado en Ciencias del Mar y Limnología, Unidad Académica Mazatlán, Calz. Joel Montes Camarena s/n, Mazatlán, 82040, Mexico
Sanchez-Cabeza J.-A.:
Universidad Nacional Autónoma de México, Unidad Académica Mazatlán, Instituto de Ciencias del Mar y Limnología, Calz. Joel Montes Camarena s/n, Mazatlán, 82040, Mexico
Univ Nacl Autonoma Mexico, Inst Ciencias Mar & Limnol, Unidad Acad Proc Ocean & Costeros, Ciudad Univ, Coyoacan 04510, Mexico
Univ Nacl Autonoma Mexico, Inst Ciencias Mar & Limnol, Unidad Acad Mazatlan, Calz Joel Montes Camarena S-N, Mazatlan 82040, Mexico
Univ Nacl Autonoma Mexico, Posgrad Ciencias Mar & Limnol, Unidad Acad Mazatlan, Calz Joel Montes Camarena S-N, Mazatlan 82040, Mexico
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