Trace elements in surface sediments from Kongsfjorden: occurrence, sources and bioavailability
Concentration levels, potential sources and bioavailability of trace elements in marine sediments from Kongsfjorden (Svalbard Islands, Norwegian Arctic) were assessed and discussed. Surface sediments were collected by a Ponar grab and characterised in terms of mineralogical composition, grain-size d...
Published in: | International Journal of Environmental Analytical Chemistry |
---|---|
Main Authors: | , , , , , , , |
Other Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Taylor and Francis Ltd.
2017
|
Subjects: | |
Online Access: | http://hdl.handle.net/11567/866145 https://doi.org/10.1080/03067319.2017.1317762 |
id |
ftunivgenova:oai:iris.unige.it:11567/866145 |
---|---|
record_format |
openpolar |
spelling |
ftunivgenova:oai:iris.unige.it:11567/866145 2024-02-11T10:01:07+01:00 Trace elements in surface sediments from Kongsfjorden: occurrence, sources and bioavailability GROTTI, MARCO Soggia, F. ARDINI, FRANCISCO Bazzano, A. Moroni, B. Vivani, R. Cappelletti, D. MISIC, CRISTINA Grotti, Marco Soggia, F. Ardini, Francisco Bazzano, A. Moroni, B. Vivani, R. Cappelletti, D. Misic, Cristina 2017 STAMPA http://hdl.handle.net/11567/866145 https://doi.org/10.1080/03067319.2017.1317762 eng eng Taylor and Francis Ltd. info:eu-repo/semantics/altIdentifier/wos/WOS:000401998000002 volume:97 (5) firstpage:401 lastpage:418 numberofpages:18 journal:INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY http://hdl.handle.net/11567/866145 doi:10.1080/03067319.2017.1317762 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85018714998 info:eu-repo/semantics/closedAccess Arctic Svalbard heavy metals lead isotope ratios potential bioavailability source assessment info:eu-repo/semantics/article 2017 ftunivgenova https://doi.org/10.1080/03067319.2017.1317762 2024-01-17T17:51:41Z Concentration levels, potential sources and bioavailability of trace elements in marine sediments from Kongsfjorden (Svalbard Islands, Norwegian Arctic) were assessed and discussed. Surface sediments were collected by a Ponar grab and characterised in terms of mineralogical composition, grain-size distribution, total organic carbon and nitrogen percentage contents, and major and trace elements concentrations. Anthropogenic and natural sources of trace elements were inferred from lead isotope ratios, while the potential metal bioavailability was evaluated by size-fractionation and solid-phase speciation studies and by the analysis of acid-volatile sulphides (AVS) and simultaneously extracted metals (SEM). Concentrations of metals, their enrichment factors and solid speciation patterns collectively indicated that the anthropogenic impact of trace elements in the fjord is generally low, with a minor enrichment with respect to crustal values (by a factor of 2–11) for As, Cr, Ni and V. The lead isotope ratios (208Pb/207Pb: 2.474–2.498 and 206Pb/207Pb: 1.206–1.212) were close to the natural signature except in the outer fjord, due to the influence of the Atlantic marine circulation. Many elements of toxicological concern (e.g. Pb, V, Zn) were enriched in the finest sediment fraction, which was by far the preponderant one, especially in the inner fjord. However, less than 15% of most trace elements (exceptions Cd and Mn) in the finest fraction was actually associated with easily leachable sediment phases. Finally, the high SEM/AVS ratios determined on samples from sites close to the glacier fronts (11–15), due to low AVS content, highlighted that the sediment in that zone cannot remove additional inputs of heavy metals by sulphide precipitation. Article in Journal/Newspaper Arctic glacier Kongsfjord* Kongsfjorden Svalbard Università degli Studi di Genova: CINECA IRIS Arctic Svalbard International Journal of Environmental Analytical Chemistry 97 5 401 418 |
institution |
Open Polar |
collection |
Università degli Studi di Genova: CINECA IRIS |
op_collection_id |
ftunivgenova |
language |
English |
topic |
Arctic Svalbard heavy metals lead isotope ratios potential bioavailability source assessment |
spellingShingle |
Arctic Svalbard heavy metals lead isotope ratios potential bioavailability source assessment GROTTI, MARCO Soggia, F. ARDINI, FRANCISCO Bazzano, A. Moroni, B. Vivani, R. Cappelletti, D. MISIC, CRISTINA Trace elements in surface sediments from Kongsfjorden: occurrence, sources and bioavailability |
topic_facet |
Arctic Svalbard heavy metals lead isotope ratios potential bioavailability source assessment |
description |
Concentration levels, potential sources and bioavailability of trace elements in marine sediments from Kongsfjorden (Svalbard Islands, Norwegian Arctic) were assessed and discussed. Surface sediments were collected by a Ponar grab and characterised in terms of mineralogical composition, grain-size distribution, total organic carbon and nitrogen percentage contents, and major and trace elements concentrations. Anthropogenic and natural sources of trace elements were inferred from lead isotope ratios, while the potential metal bioavailability was evaluated by size-fractionation and solid-phase speciation studies and by the analysis of acid-volatile sulphides (AVS) and simultaneously extracted metals (SEM). Concentrations of metals, their enrichment factors and solid speciation patterns collectively indicated that the anthropogenic impact of trace elements in the fjord is generally low, with a minor enrichment with respect to crustal values (by a factor of 2–11) for As, Cr, Ni and V. The lead isotope ratios (208Pb/207Pb: 2.474–2.498 and 206Pb/207Pb: 1.206–1.212) were close to the natural signature except in the outer fjord, due to the influence of the Atlantic marine circulation. Many elements of toxicological concern (e.g. Pb, V, Zn) were enriched in the finest sediment fraction, which was by far the preponderant one, especially in the inner fjord. However, less than 15% of most trace elements (exceptions Cd and Mn) in the finest fraction was actually associated with easily leachable sediment phases. Finally, the high SEM/AVS ratios determined on samples from sites close to the glacier fronts (11–15), due to low AVS content, highlighted that the sediment in that zone cannot remove additional inputs of heavy metals by sulphide precipitation. |
author2 |
Grotti, Marco Soggia, F. Ardini, Francisco Bazzano, A. Moroni, B. Vivani, R. Cappelletti, D. Misic, Cristina |
format |
Article in Journal/Newspaper |
author |
GROTTI, MARCO Soggia, F. ARDINI, FRANCISCO Bazzano, A. Moroni, B. Vivani, R. Cappelletti, D. MISIC, CRISTINA |
author_facet |
GROTTI, MARCO Soggia, F. ARDINI, FRANCISCO Bazzano, A. Moroni, B. Vivani, R. Cappelletti, D. MISIC, CRISTINA |
author_sort |
GROTTI, MARCO |
title |
Trace elements in surface sediments from Kongsfjorden: occurrence, sources and bioavailability |
title_short |
Trace elements in surface sediments from Kongsfjorden: occurrence, sources and bioavailability |
title_full |
Trace elements in surface sediments from Kongsfjorden: occurrence, sources and bioavailability |
title_fullStr |
Trace elements in surface sediments from Kongsfjorden: occurrence, sources and bioavailability |
title_full_unstemmed |
Trace elements in surface sediments from Kongsfjorden: occurrence, sources and bioavailability |
title_sort |
trace elements in surface sediments from kongsfjorden: occurrence, sources and bioavailability |
publisher |
Taylor and Francis Ltd. |
publishDate |
2017 |
url |
http://hdl.handle.net/11567/866145 https://doi.org/10.1080/03067319.2017.1317762 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic glacier Kongsfjord* Kongsfjorden Svalbard |
genre_facet |
Arctic glacier Kongsfjord* Kongsfjorden Svalbard |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000401998000002 volume:97 (5) firstpage:401 lastpage:418 numberofpages:18 journal:INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY http://hdl.handle.net/11567/866145 doi:10.1080/03067319.2017.1317762 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85018714998 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1080/03067319.2017.1317762 |
container_title |
International Journal of Environmental Analytical Chemistry |
container_volume |
97 |
container_issue |
5 |
container_start_page |
401 |
op_container_end_page |
418 |
_version_ |
1790596863716491264 |