Title
Baseline concentrations, spatial distribution and origin of trace elements in marine surface sediments of the northern Antarctic Peninsula
Date Issued
01 February 2023
Access level
open access
Resource Type
Journal
Author(s)
Delhaye L.J.
Elskens M.
Ricaurte-Villota C.
Kochzius M.
Abstract
Increased human activity in the Antarctic Peninsula combined with accelerated melting of its glaciers highlights the importance of monitoring trace element concentrations. Surface sediment samples were collected around King George Island, Hope Bay and in the Bransfield Strait in February 2020 and were analysed by X-ray fluorescence spectroscopy and inductively coupled plasma mass spectrometry. The methods display a good correlation. Our results show clear distinctions between these regions for selected elements with high local heterogeneities. Hope Bay exhibited lower concentrations of Fe, Mn, Co, V, Zn while most stations in the Bransfield Strait and around King George Island showed moderate to significant enrichment in Cu, As and Cd. Twelve stations presented a moderate ecological risk. The consistency of our values supports a natural rather than anthropogenic origin, possibly related to volcanism and the geology of the area. However, our results suggest an increase in Cr that should be further investigated.
Volume
187
Language
English
OCDE Knowledge area
Geología
Scopus EID
2-s2.0-85145094359
PubMed ID
Source
Marine Pollution Bulletin
Resource of which it is part
Marine Pollution Bulletin
ISSN of the container
0025326X
Source funding
Belgian Federal Science Policy Office
Sources of information: Directorio de Producción Científica Instituto Geológico Minero y Metalúrgico