Geochemistry of heavy metals in bottom sediments from streams of the western coast of the Rio de La Plata estuary, Argentina

The fluvial system within the southwestern coastal sector of the Rio de la Plata interacts with a very large and efficient mixing basin known as the Rio de la Plata estuary. The region is a densely populated and productive sector of Argentina and is characterised by a temperate humid climate. The st...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Ronco, Alicia Estela, Camilión, Cecilia, Manassero, Marcelo Jorge
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2001
Materias:	Geología Anthropic pollution Clay mineralogy Heavy metal distribution Río de La Plata western coast Sediment-phase contaminants
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/137553
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-137553
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Geología Anthropic pollution Clay mineralogy Heavy metal distribution Río de La Plata western coast Sediment-phase contaminants
spellingShingle	Geología Anthropic pollution Clay mineralogy Heavy metal distribution Río de La Plata western coast Sediment-phase contaminants Ronco, Alicia Estela Camilión, Cecilia Manassero, Marcelo Jorge Geochemistry of heavy metals in bottom sediments from streams of the western coast of the Rio de La Plata estuary, Argentina
topic_facet	Geología Anthropic pollution Clay mineralogy Heavy metal distribution Río de La Plata western coast Sediment-phase contaminants
description	The fluvial system within the southwestern coastal sector of the Rio de la Plata interacts with a very large and efficient mixing basin known as the Rio de la Plata estuary. The region is a densely populated and productive sector of Argentina and is characterised by a temperate humid climate. The streams Carnaval, Martin, Del Gato and El Pescado of the study area drain two main geomorphologic units: a higher inner zone and the low lands of the coastal plain. In particular, the Del Gato stream receives heavily polluted discharges from agricultural, urban and industrial point and non-point sources of pollution, while the other streams collect a lower and variable discharge input. As a part of an initial assessment of the role of fluvial bottom sediments in the fate of metals through the stream ecosystems, the spatial distribution of trace and major elements related to particles in the accumulation areas was examined. Concentration of Cr, Ni, Cu, Zn, Cd, Hg, Pb, Fe and Mn, grain size, mineralogy (clay-X ray diffraction) and organic matter content were analysed in the four streams considering both geomorphologic units at different depositional time. Untreated and iron-normalised trace metal concentrations in the most polluted streams show higher levels in the upper layers of most contaminated sectors and accumulation areas associated to topographic low lands. The coastal plain sector behaves as a regional sink between the upstream area and the estuary.
format	Articulo Articulo
author	Ronco, Alicia Estela Camilión, Cecilia Manassero, Marcelo Jorge
author_facet	Ronco, Alicia Estela Camilión, Cecilia Manassero, Marcelo Jorge
author_sort	Ronco, Alicia Estela
title	Geochemistry of heavy metals in bottom sediments from streams of the western coast of the Rio de La Plata estuary, Argentina
title_short	Geochemistry of heavy metals in bottom sediments from streams of the western coast of the Rio de La Plata estuary, Argentina
title_full	Geochemistry of heavy metals in bottom sediments from streams of the western coast of the Rio de La Plata estuary, Argentina
title_fullStr	Geochemistry of heavy metals in bottom sediments from streams of the western coast of the Rio de La Plata estuary, Argentina
title_full_unstemmed	Geochemistry of heavy metals in bottom sediments from streams of the western coast of the Rio de La Plata estuary, Argentina
title_sort	geochemistry of heavy metals in bottom sediments from streams of the western coast of the rio de la plata estuary, argentina
publishDate	2001
url	http://sedici.unlp.edu.ar/handle/10915/137553
work_keys_str_mv	AT roncoaliciaestela geochemistryofheavymetalsinbottomsedimentsfromstreamsofthewesterncoastoftheriodelaplataestuaryargentina AT camilioncecilia geochemistryofheavymetalsinbottomsedimentsfromstreamsofthewesterncoastoftheriodelaplataestuaryargentina AT manasseromarcelojorge geochemistryofheavymetalsinbottomsedimentsfromstreamsofthewesterncoastoftheriodelaplataestuaryargentina
bdutipo_str	Repositorios
_version_	1764820457106702339

Geochemistry of heavy metals in bottom sediments from streams of the western coast of the Rio de La Plata estuary, Argentina

Ejemplares similares