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Distribution and bioavailability of mercury in the surface sediments of the Baltic Sea by Urszula Kwasigroch; Magdalena Bełdowska; Agnieszka Jędruch; Katarzyna Łukawska-Matuszewska is a Environmental Science article available to read on EtoBox.

What is Distribution and bioavailability of mercury in the surface sediments of the Baltic Sea about?

The study aimed to determine the level of mercury (Hg) and its labile and stable forms in the surface sediments of the Baltic Sea. The work considers the impact of current and historical sources of Hg on sediment pollution, together with the influence of different environmental parameters, including water inflows from the North Sea. Surface sediments (top 5 cm) were collected in 2016–2017 at 91 stations located in different areas of the Baltic Sea, including Belt Sea, Arkona Basin, Bornholm Basin, Gdańsk Basin, West Gotland Basin, East Gotland Basin, and the Bothnian Sea. Besides, the particulate matter suspended in the surface and near-bottom water was also collected. The analysis of total Hg concentration and individual Hg forms in collected samples was carried out using a 5-step thermodesorption method. This method allows for the identification of three labile and thus biologically available, fractions of Hg, which are mercury halides, organic Hg, mercury oxide and sulphate. Two stable fractions, mercury sulphide and residual Hg, were also determined. The highest Hg concentrations, reaching 341 ng g^−1^, were measured in the highly industrialised Kiel Bay, which was additionally

Who reads Distribution and bioavailability of mercury in the surface sediments of the Baltic Sea?

Author

Urszula Kwasigroch; Magdalena Bełdowska; Agnieszka Jędruch; Katarzyna Łukawska-Matuszewska

Publisher

Springer Science and Business Media LLC

Published

2021

Language

EN

Field

Environmental Science (Physical Sciences)