Sediment quality in the semi-enclosed Lumparn Bay, Aland Islands, Baltic Sea

MARINE POLLUTION BULLETIN

卷:161

Article

Vallius, Henry¹ 

[1] Geol Survey Finland, POB 96, FIN-02151 Espoo, Finland

关键词: Heavy metals;    Sediment quality guidelines;    Maritime spatial planning;    Domes;    Biogenic gas;    Baltic Sea;   

DOI  :  10.1016/j.marpolbul.2020.111798

来源: Elsevier

【 摘 要 】

The Lumparn Bay, due to its nature, is prone both to natural and anthropogenic environmental pressures. It is a semi-enclosed rather large, but relatively shallow bay filled with glacial and postglacial sediments. Unlike any other areas in the world the seafloor in this area is filled with gas domes. Comparison with the chemistry of some 2000 surface core samples from the Gulf of Finland revealed that the concentrations of arsenic, cadmium, chromium, copper, mercury, molybdenum, nickel, lead, zinc, and sulphur from the Lumparn Bay were in general on a low level, indicating only minor pressures on the seafloor. However, when compared to established sediment quality guidelines there are a few points of possible concern as some samples exceed the probable effects level for arsenic and quite a few samples exceed the effects range - median level for nickel. Also a few comparably high molybdenum concentrations exceed the lowest effects level.

【 授权许可】

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