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Abstract:

The complex and variable composition of natural sediments makes it very difficult to predict the bioavailability and bioaccumulation of sediment-bound contaminants. Several approaches have been proposed to overcome this problem, including an experimental model using artificial particles with or without humic acids as a source of organic matter. For this work, we have applied this experimental model, and also a sample of a natural sediment, to investigate the uptake and bioaccumulation of 2,4-dichlorophenol (2,4-DCP) by Sphaerium corneum. Additionally, the particle-water partition coefficients (Kd) were calculated. The results showed that the bioaccumulation of 2,4-DCP by clams did not depend solely on the levels of chemical dissolved, but also on the amount sorbed onto the particles and the characteristics and the strength of that binding. This study confirms the value of using artificial particles as a suitable experimental model for assessing the fate of sediment-bound contaminants. © 2006 Elsevier Ltd. All rights reserved.

Registro:

Documento: Artículo
Título:Modelling 2,4-dichlorophenol bioavailability and bioaccumulation by the freshwater fingernail clam Sphaerium corneum using artificial particles and humic acids
Autor:Verrengia Guerrero, N.R.; Taylor, M.G.; Simkiss, K.
Filiación:Toxicology and Legal Chemistry, Department of Biological Chemistry, Faculty of Exact and Natural Sciences, 4 piso, Pab. II, Cdad. Universitaria, C1428EHA Buenos Aires, Argentina
School of Animal and Microbial Sciences, The University of Reading, P.O. Box 228, Reading, RG6 6AJ, United Kingdom
Palabras clave:2,4-Dichlorophenol bioavailability; Artificial particles; Humic acids; Particle-bound contaminants; Sphaerium corneum; 2,4-Dichlorophenol bioavailability; Artificial particles; Humic acids; Particle-bound contaminants; Sphaerium corneum; Binding energy; Carboxylic acids; Impurities; Organic compounds; Physiology; Sedimentology; Sediments; Phenols; humic acid; bioaccumulation; bioavailability; chlorophenol; freshwater; humic acid; modeling; mollusc; partition coefficient; sediment pollution; animal experiment; animal tissue; article; bioaccumulation; bioavailability; calculation; clam; dissolution; experimental model; nonhuman; partition coefficient; sedimentation; Aluminum Silicates; Animals; Biological Availability; Bivalvia; Chlorophenols; Fresh Water; Geologic Sediments; Humic Substances; Hydrogen-Ion Concentration; Models, Biological; Resins, Synthetic; Water Pollutants, Chemical; Bivalvia; Sphaerium corneum
Año:2007
Volumen:145
Número:1
Página de inicio:238
Página de fin:244
DOI: http://dx.doi.org/10.1016/j.envpol.2006.03.014
Título revista:Environmental Pollution
Título revista abreviado:Environ. Pollut.
ISSN:02697491
CODEN:ENPOE
CAS:humic acid, 1415-93-6; 2,4-dichlorophenol, 120-83-2; Aluminum Silicates; Chlorophenols; Humic Substances; Resins, Synthetic; Water Pollutants, Chemical; clay, 1302-87-0
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02697491_v145_n1_p238_VerrengiaGuerrero

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Citas:

---------- APA ----------
Verrengia Guerrero, N.R., Taylor, M.G. & Simkiss, K. (2007) . Modelling 2,4-dichlorophenol bioavailability and bioaccumulation by the freshwater fingernail clam Sphaerium corneum using artificial particles and humic acids. Environmental Pollution, 145(1), 238-244.
http://dx.doi.org/10.1016/j.envpol.2006.03.014
---------- CHICAGO ----------
Verrengia Guerrero, N.R., Taylor, M.G., Simkiss, K. "Modelling 2,4-dichlorophenol bioavailability and bioaccumulation by the freshwater fingernail clam Sphaerium corneum using artificial particles and humic acids" . Environmental Pollution 145, no. 1 (2007) : 238-244.
http://dx.doi.org/10.1016/j.envpol.2006.03.014
---------- MLA ----------
Verrengia Guerrero, N.R., Taylor, M.G., Simkiss, K. "Modelling 2,4-dichlorophenol bioavailability and bioaccumulation by the freshwater fingernail clam Sphaerium corneum using artificial particles and humic acids" . Environmental Pollution, vol. 145, no. 1, 2007, pp. 238-244.
http://dx.doi.org/10.1016/j.envpol.2006.03.014
---------- VANCOUVER ----------
Verrengia Guerrero, N.R., Taylor, M.G., Simkiss, K. Modelling 2,4-dichlorophenol bioavailability and bioaccumulation by the freshwater fingernail clam Sphaerium corneum using artificial particles and humic acids. Environ. Pollut. 2007;145(1):238-244.
http://dx.doi.org/10.1016/j.envpol.2006.03.014