Artículo
Dynamics of organochlorine contaminants in surface water and in Myriophyllum aquaticum plants of the river Xanaes in central Argentina during the annual dry season
Fecha de publicación:
06/2013
Editorial:
Springer
Revista:
Archives of Environmental Contamination and Toxicology
ISSN:
0090-4341
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The dynamics of organochlorine pesticides (OCPs) and their major metabolites were studied in surface waters and plants of the River Xanaes (province of Córdoba, Argentina) during the annual dry season. The results of the 5-month monitoring study (April to August 2010) showed similar low contamination levels in nonagricultural mountain and agricultural areas in both water and plants. The concentrations of compounds detected in the surface water were < 4.5 ng L-1, whereas concentrations of these substances in Myriophyllum aquaticum plants were< 5 µg kg-1 (dry weight) with the exception of trans-permethrin (17.6 µg kg-1, dry weight). Because no notable differences in the contamination level between samples from the mountain and the agricultural areawere observed, it was assumed that OCPs may not play an important role in today?s pesticide use in this area. Furthermore, the concentration?time trends for OCPs in the submerged plants showed generally similar elimination behaviour independent of compound and sampling site, thus indicating an integral rather than a substance-specific process, such as partitioning between the plant and the ambient water. As known, rooted macrophytes can take up contaminants by way of roots, so sediments may be the principal source. To understand the dynamics of these compounds in the river area more deeply, thus further research should include study of the river sediment.
Palabras clave:
Hydrophobic Organic Compounds
,
Pesticides
,
Fate
,
Biomonitoring
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CCT - CORDOBA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CORDOBA
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CORDOBA
Articulos(IMBIV)
Articulos de INST.MULTIDISCIPL.DE BIOLOGIA VEGETAL (P)
Articulos de INST.MULTIDISCIPL.DE BIOLOGIA VEGETAL (P)
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Schreiber, Sebastian Rene; Harguinteguy, Carlos Alfredo; Manetti, Martin Diego; Dynamics of organochlorine contaminants in surface water and in Myriophyllum aquaticum plants of the river Xanaes in central Argentina during the annual dry season; Springer; Archives of Environmental Contamination and Toxicology; 65; 3; 6-2013; 466-473
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