Distribution and diagenesis of trace metals ...
Document type :
Article dans une revue scientifique: Article original
Title :
Distribution and diagenesis of trace metals in marine sediments of a coastal Mediterranean area: St-Georges Bay (Lebanon)
Author(s) :
El Houssainy, Amonda [Auteur]
Institut méditerranéen d'océanologie [MIO]
Abi-Ghanem, Carine [Auteur]
الجامعة اللبنانية [بيروت] = Lebanese University [Beirut] = Université libanaise [Beyrouth] [LU / ULB]
Dang, Duc Huy [Auteur]
Trent University
Mahfouz, Céline [Auteur]
Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 [LOG]
Omanović, Dario [Auteur]
Rudjer Boskovic Institute [Zagreb]
Khalaf, Gaby [Auteur]
National Council for Scientific Research = Conseil national de la recherche scientifique du Liban [Lebanon] [CNRS-L]
Mounier, Stéphane [Auteur]
Institut méditerranéen d'océanologie [MIO]
Garnier, Cédric [Auteur]
Institut méditerranéen d'océanologie [MIO]
Institut méditerranéen d'océanologie [MIO]
Abi-Ghanem, Carine [Auteur]
الجامعة اللبنانية [بيروت] = Lebanese University [Beirut] = Université libanaise [Beyrouth] [LU / ULB]
Dang, Duc Huy [Auteur]
Trent University
Mahfouz, Céline [Auteur]
Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 [LOG]
Omanović, Dario [Auteur]
Rudjer Boskovic Institute [Zagreb]
Khalaf, Gaby [Auteur]
National Council for Scientific Research = Conseil national de la recherche scientifique du Liban [Lebanon] [CNRS-L]
Mounier, Stéphane [Auteur]
Institut méditerranéen d'océanologie [MIO]
Garnier, Cédric [Auteur]
Institut méditerranéen d'océanologie [MIO]
Journal title :
Marine Pollution Bulletin
Pages :
111066
Publisher :
Elsevier
Publication date :
2020
ISSN :
0025-326X
English keyword(s) :
trace metals
Mediterranean
early diagenesis
sediments
pore waters
Mediterranean
early diagenesis
sediments
pore waters
HAL domain(s) :
Sciences de l'environnement/Biodiversité et Ecologie
Planète et Univers [physics]/Sciences de la Terre/Océanographie
Chimie/Autre
Planète et Univers [physics]/Sciences de la Terre/Océanographie
Chimie/Autre
English abstract : [en]
St-Georges Bay (Lebanon) is an open bay, to the Mediterranean Sea and it is exposed to numerous anthropogenic activities such as industrial effluents, non-treated wastewater discharge and maritime activities leading an ...
Show more >St-Georges Bay (Lebanon) is an open bay, to the Mediterranean Sea and it is exposed to numerous anthropogenic activities such as industrial effluents, non-treated wastewater discharge and maritime activities leading an increasing chemical contamination especially with trace metals. Contamination with trace metals (Cu, Cd, Co, Pb, As, Ag and Hg) and the influence of early diagenesis on their distribution are studied on both sediments and waters transect. For this purpose, sediment cores were collected, then treated under inert atmosphere to retrieve pore waters and solid fraction. The area appeared to be seriously impacted by the transport through Beirut River and/or by direct inputs, and the recent landscaping done with dumpsite material. The sediments showed a significant level of contamination. Element mobility was studied by selective extraction on sediments. The mobility of the studied trace elements from solid fraction to pore waters is controlled by Fe/Mn cycle and organic matter.Show less >
Show more >St-Georges Bay (Lebanon) is an open bay, to the Mediterranean Sea and it is exposed to numerous anthropogenic activities such as industrial effluents, non-treated wastewater discharge and maritime activities leading an increasing chemical contamination especially with trace metals. Contamination with trace metals (Cu, Cd, Co, Pb, As, Ag and Hg) and the influence of early diagenesis on their distribution are studied on both sediments and waters transect. For this purpose, sediment cores were collected, then treated under inert atmosphere to retrieve pore waters and solid fraction. The area appeared to be seriously impacted by the transport through Beirut River and/or by direct inputs, and the recent landscaping done with dumpsite material. The sediments showed a significant level of contamination. Element mobility was studied by selective extraction on sediments. The mobility of the studied trace elements from solid fraction to pore waters is controlled by Fe/Mn cycle and organic matter.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Source :
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