Sedimentation and chronology of heavy metal pollution in Oslo harbor, Norway

Aivo Lepland; Thorbjørn Joest Andersen; Aave Lepland; Hans Peter Aarp; Elisabeth Alve; Gijs Breedveld; Anders Rindby

doi:10.1016/j.marpolbul.2010.04.017

Sedimentation and chronology of heavy metal pollution in Oslo harbor, Norway

Aivo Lepland, Thorbjørn Joest Andersen, Aave Lepland, Hans Peter Aarp, Elisabeth Alve, Gijs Breedveld, Anders Rindby

Geology

46 Citations (Scopus)

Abstract

Stratigraphic profiles of Cu, Cd and Hg in ten sediment cores from the Oslo harbor, Norway, combined with results of radiometric dating demonstrate that pollution by these metals peaked between 1940 and 1970. Dating results indicate that Hg discharges peaked between 1940 and 1950, Cd reached maximum ca. 1955–1960, and Cu has the highest concentration in sediment interval corresponding to ca. 1970. Geochemical profiles and maxima of Cu, Cd and Hg concentrations can be used as chronostratigraphic markers for sediment cores from the Oslo harbor. Acoustic backscatter and sediment core data indicate that propeller wash affects the seabed in the Oslo harbor. The propeller-induced turbulence causes erosion, and in places exposes and remobilizes contaminated sediments that accumulated in the harbor during previous decades. Such re-exposure of contaminated sediments could be detrimental to local ecosystems and offset remediation efforts, warranting further impact studies and potential mitigation strategies to prevent redistribution.

Original language	English
Journal	Marine Pollution Bulletin
Volume	60
Issue number	9
Pages (from-to)	1512-1522
Number of pages	11
ISSN	0025-326X
DOIs	https://doi.org/10.1016/j.marpolbul.2010.04.017
Publication status	Published - Sept 2010

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10.1016/j.marpolbul.2010.04.017

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@article{cf1e583f0eac438a9d1a1947540875c9,

title = "Sedimentation and chronology of heavy metal pollution in Oslo harbor, Norway",

abstract = "Stratigraphic profiles of Cu, Cd and Hg in ten sediment cores from the Oslo harbor, Norway, combined with results of radiometric dating demonstrate that pollution by these metals peaked between 1940 and 1970. Dating results indicate that Hg discharges peaked between 1940 and 1950, Cd reached maximum ca. 1955–1960, and Cu has the highest concentration in sediment interval corresponding to ca. 1970. Geochemical profiles and maxima of Cu, Cd and Hg concentrations can be used as chronostratigraphic markers for sediment cores from the Oslo harbor. Acoustic backscatter and sediment core data indicate that propeller wash affects the seabed in the Oslo harbor. The propeller-induced turbulence causes erosion, and in places exposes and remobilizes contaminated sediments that accumulated in the harbor during previous decades. Such re-exposure of contaminated sediments could be detrimental to local ecosystems and offset remediation efforts, warranting further impact studies and potential mitigation strategies to prevent redistribution.",

author = "Aivo Lepland and Andersen, {Thorbj{\o}rn Joest} and Aave Lepland and Aarp, {Hans Peter} and Elisabeth Alve and Gijs Breedveld and Anders Rindby",

year = "2010",

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doi = "10.1016/j.marpolbul.2010.04.017",

language = "English",

volume = "60",

pages = "1512--1522",

journal = "Marine Pollution Bulletin",

issn = "0025-326X",

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TY - JOUR

T1 - Sedimentation and chronology of heavy metal pollution in Oslo harbor, Norway

AU - Lepland, Aivo

AU - Andersen, Thorbjørn Joest

AU - Lepland, Aave

AU - Aarp, Hans Peter

AU - Alve, Elisabeth

AU - Breedveld, Gijs

AU - Rindby, Anders

PY - 2010/9

Y1 - 2010/9

N2 - Stratigraphic profiles of Cu, Cd and Hg in ten sediment cores from the Oslo harbor, Norway, combined with results of radiometric dating demonstrate that pollution by these metals peaked between 1940 and 1970. Dating results indicate that Hg discharges peaked between 1940 and 1950, Cd reached maximum ca. 1955–1960, and Cu has the highest concentration in sediment interval corresponding to ca. 1970. Geochemical profiles and maxima of Cu, Cd and Hg concentrations can be used as chronostratigraphic markers for sediment cores from the Oslo harbor. Acoustic backscatter and sediment core data indicate that propeller wash affects the seabed in the Oslo harbor. The propeller-induced turbulence causes erosion, and in places exposes and remobilizes contaminated sediments that accumulated in the harbor during previous decades. Such re-exposure of contaminated sediments could be detrimental to local ecosystems and offset remediation efforts, warranting further impact studies and potential mitigation strategies to prevent redistribution.

AB - Stratigraphic profiles of Cu, Cd and Hg in ten sediment cores from the Oslo harbor, Norway, combined with results of radiometric dating demonstrate that pollution by these metals peaked between 1940 and 1970. Dating results indicate that Hg discharges peaked between 1940 and 1950, Cd reached maximum ca. 1955–1960, and Cu has the highest concentration in sediment interval corresponding to ca. 1970. Geochemical profiles and maxima of Cu, Cd and Hg concentrations can be used as chronostratigraphic markers for sediment cores from the Oslo harbor. Acoustic backscatter and sediment core data indicate that propeller wash affects the seabed in the Oslo harbor. The propeller-induced turbulence causes erosion, and in places exposes and remobilizes contaminated sediments that accumulated in the harbor during previous decades. Such re-exposure of contaminated sediments could be detrimental to local ecosystems and offset remediation efforts, warranting further impact studies and potential mitigation strategies to prevent redistribution.

U2 - 10.1016/j.marpolbul.2010.04.017

DO - 10.1016/j.marpolbul.2010.04.017

M3 - Journal article

SN - 0025-326X

VL - 60

SP - 1512

EP - 1522

JO - Marine Pollution Bulletin

JF - Marine Pollution Bulletin

IS - 9

ER -

Sedimentation and chronology of heavy metal pollution in Oslo harbor, Norway

Abstract

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