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Abstract:

In this work, studies on the bioaccumulation of Cd and Pb by Ulva lactuca at different sites of Gulf San Jorge (Patagonia, Argentina) are presented. Higher values of bioaccumulated Cd were found in Punta Maqueda - a site believed to serve as a control - in comparison to those in Punta Borja, a place highly exposed to urban and industrial activities. Consequently; the labile fractions of Cd and Pb in seawater were determined with a flow injection-preconcentration manifold interfaced to a graphite furnace-atomic absorption spectrometer (FI-GFAAS). The results obtained by kinetic speciation showed that the variable that correctly explains heavy metals accumulation in the alga, is the labile metal fraction in seawater. We propose to use an enhancement ratio - on the basis of the kinetically labile metal fraction - for calculation of the metal accumulated by the alga relative to its environment. © 2005 Elsevier Ltd. All rights reserved.

Registro:

Documento: Artículo
Título:A link between lead and cadmium kinetic speciation in seawater and accumulation by the green alga Ulva lactuca
Autor:Muse, J.O.; Carducci, C.N.; Stripeikis, J.D.; Tudino, M.B.; Fernández, F.M.
Filiación:Departamento de Química Analítica Y Fisicoquímica, Facultad de Farmacia Y Bioquímica, Qulmica Analitica, Junin 956-1113, Buenos Aires, Argentina
Departamento de Quimica Inorganica, Analitica Y Quimica Fisica/INQUIMAE, Facultad de Ciencias Exactas Y Naturales, Ciudad Universitavia, Buenos Aires, Argentina
School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332, United States
Palabras clave:Cd and Pb; Concentration factor; Kinetic speciation; Seawater; Ulva lactuca; Cd and Pb; Concentration factor; Kinetic speciation; Ulva lactuca; Algae; Cadmium; Graphite; Lead; Seawater; cadmium; graphite; lead; sea water; bioaccumulation; cadmium; green alga; Ladinian; Argentina; article; atomic absorption spectrometry; bioaccumulation; calculation; chemical analysis; chemical environment; chemical reaction kinetics; concentration (parameters); fractionation; furnace; pollution; sea pollution; Ulva; urban area; Argentina; Biodegradation, Environmental; Cadmium; Environmental Monitoring; Environmental Pollution; Flow Injection Analysis; Industry; Lead; Metals, Heavy; Seawater; Spectrophotometry, Atomic; Ulva; Water Pollutants, Chemical; Atlantic Ocean; San Jorge Gulf; algae; Chlorophyta; Ulva; Ulva lactuca
Año:2006
Volumen:141
Número:1
Página de inicio:126
Página de fin:130
DOI: http://dx.doi.org/10.1016/j.envpol.2005.08.021
Título revista:Environmental Pollution
Título revista abreviado:Environ. Pollut.
ISSN:02697491
CODEN:ENPOE
CAS:cadmium, 22537-48-0, 7440-43-9; graphite, 7782-42-5; lead, 13966-28-4, 7439-92-1; Cadmium, 7440-43-9; Lead, 7439-92-1; Metals, Heavy; Water Pollutants, Chemical
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02697491_v141_n1_p126_Muse

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Citas:

---------- APA ----------
Muse, J.O., Carducci, C.N., Stripeikis, J.D., Tudino, M.B. & Fernández, F.M. (2006) . A link between lead and cadmium kinetic speciation in seawater and accumulation by the green alga Ulva lactuca. Environmental Pollution, 141(1), 126-130.
http://dx.doi.org/10.1016/j.envpol.2005.08.021
---------- CHICAGO ----------
Muse, J.O., Carducci, C.N., Stripeikis, J.D., Tudino, M.B., Fernández, F.M. "A link between lead and cadmium kinetic speciation in seawater and accumulation by the green alga Ulva lactuca" . Environmental Pollution 141, no. 1 (2006) : 126-130.
http://dx.doi.org/10.1016/j.envpol.2005.08.021
---------- MLA ----------
Muse, J.O., Carducci, C.N., Stripeikis, J.D., Tudino, M.B., Fernández, F.M. "A link between lead and cadmium kinetic speciation in seawater and accumulation by the green alga Ulva lactuca" . Environmental Pollution, vol. 141, no. 1, 2006, pp. 126-130.
http://dx.doi.org/10.1016/j.envpol.2005.08.021
---------- VANCOUVER ----------
Muse, J.O., Carducci, C.N., Stripeikis, J.D., Tudino, M.B., Fernández, F.M. A link between lead and cadmium kinetic speciation in seawater and accumulation by the green alga Ulva lactuca. Environ. Pollut. 2006;141(1):126-130.
http://dx.doi.org/10.1016/j.envpol.2005.08.021