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An ombrotrophic peat core was collected from Etang de la Gruère (Swiss Jura Mountains) and divided into 3 cm slices (n=26). Humic acids (HA) were extracted and the yield of HA was employed as an index of humification. Mercury concentrations were measured in both the peat samples and the corresponding HA.The highest Hg concentrations were found in the top half of the peat core, corresponding to the...
Scientific results about the role of peatlands as sink or source of bromine are rather antithetic. Although several attempts have been performed to correlate Br content and peat decomposition/humification, the role of humic acids (HAs) as possible sink of this element has not been previously investigated. Two peat cores (2H and 2T), collected from the ombrotrophic bog Etang de la Gruère (Switzerland),...
An ombrotrophic peat core (10×10×81 cm) was collected from Etang de la Gruère (Switzerland) and divided in 27 slices of 3 cm. Humic acids (HAs) were extracted from each slice after freeze-drying and fine milling. All raw peat and HA samples were analyzed using Energy-dispersive miniprobe X-ray fluorescence multielement analyser (EMMA-XRF), fluorescence spectroscopy and Low Background γ-spectrometry...
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