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Trace elements in Kongsfjorden: occurrence, sources and bioavailability (TEK)
IADC_id: 9
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Call year: 2015
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Project description:
The main goal of the present project is to obtain a better knowledge of the occurrence, bioavailability, sources and transport pathways of trace elements in the marine environment of Kongsfjorden.This task will be obtained by oceanographic activities in the fjord and extensive analytical work to measure hydrological (temperature, salinity), biological (nutrients, phytoplankton pigments) and chemical (major and trace elements associated to suspended particulate matter) parameters for the sea surface and water column. The sources of trace elements will be evaluated by measuring lead isotope ratios and comparing them with the isotopic signature of the atmospheric particulate and marine sediments collected in the same area. The actual bioavailability of trace elements for the marine ecosystem will be assessed by analysing the solid speciation patterns of heavy metals in surface sediments. The obtained data set will allow us to better understand the complex pathways by which these contaminants are delivered to the Arctic and the relative contribution of the anthropogenic and natural sources
National/International Cooperation:
Roberto Udisti (University of Florence) - Stefano Aliani (CNR Italy)
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