IMBIV   05474
INSTITUTO MULTIDISCIPLINARIO DE BIOLOGIA VEGETAL
Unidad Ejecutora - UE
artículos
Título:
Study of the distribution of dichlorobenzenes in sediment and water of Suqu¡§ªa River basin (C¡§®rdoba-Argentina) by an optimised SPME-GC-MS procedure
Autor/es:
MAGDALENA V. MONFERRAN, PABLO R. CORTINA, ANA N. SANTIAGO AND DANIEL A. WUNDERLIN
Revista:
International Journal Environmenatl and Health
Editorial:
INDERSCIENCE
Referencias:
Año: 2009 vol. 3 p. 363 - 377
ISSN:
1743-4955
Resumen:
Three dichlorobenzene isomers (DCBs) were monitored in water
and sediment from the Suqu¨ªa River basin by Solid Phase Microextraction
(HS-SPME), coupled to Gas Chromatography¨CMass Spectrometry (GC¨CMS).
DCBs were not detected in water or sediments corresponding to the upper
basin. Pollution with DCBs became evident when the river flows through small
cities. As expected, C¨®rdoba city causes the most severe pollution, presenting
up to 764.7 ¦Ìg kg¨C1 DW DCBs in the sediment of urban areas. Results show
that DCBs mainly originate in domestic activities, reaching the river by
non-point sources such as urban run-off or sewage discharge, resulting in
a widespread distribution in the basin. The high level of DCBs found in
that DCBs mainly originate in domestic activities, reaching the river by
non-point sources such as urban run-off or sewage discharge, resulting in
a widespread distribution in the basin. The high level of DCBs found in
¦Ìg kg¨C1 DW DCBs in the sediment of urban areas. Results show
that DCBs mainly originate in domestic activities, reaching the river by
non-point sources such as urban run-off or sewage discharge, resulting in
a widespread distribution in the basin. The high level of DCBs found in
sediments involves absorption of these xenobiotics in the natural organic
matter of sediments. This organic layer could be responsible for transporting
DCBs downstream from their discharge, thus spreading the pollution
throughout the basin.