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Diagenetic cycling of arsenic in the sediments of eutrophic Baldeggersee, Switzerland

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Diagenetic cycling of arsenic in the sediments of eutrophic Baldeggersee, Switzerland. / Fabian, Daniel; Zhou, Zheng; Wehrli, Bernard et al.
In: Applied Geochemistry, Vol. 18, No. 9, 09.2003, p. 1497-1506.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Fabian, D, Zhou, Z, Wehrli, B & Friedl, G 2003, 'Diagenetic cycling of arsenic in the sediments of eutrophic Baldeggersee, Switzerland', Applied Geochemistry, vol. 18, no. 9, pp. 1497-1506. https://doi.org/10.1016/S0883-2927(03)00064-7

APA

Fabian, D., Zhou, Z., Wehrli, B., & Friedl, G. (2003). Diagenetic cycling of arsenic in the sediments of eutrophic Baldeggersee, Switzerland. Applied Geochemistry, 18(9), 1497-1506. https://doi.org/10.1016/S0883-2927(03)00064-7

Vancouver

Fabian D, Zhou Z, Wehrli B, Friedl G. Diagenetic cycling of arsenic in the sediments of eutrophic Baldeggersee, Switzerland. Applied Geochemistry. 2003 Sept;18(9):1497-1506. doi: 10.1016/S0883-2927(03)00064-7

Author

Fabian, Daniel ; Zhou, Zheng ; Wehrli, Bernard et al. / Diagenetic cycling of arsenic in the sediments of eutrophic Baldeggersee, Switzerland. In: Applied Geochemistry. 2003 ; Vol. 18, No. 9. pp. 1497-1506.

Bibtex

@article{106f7e9464cc4da6935692e3a8c6edca,
title = "Diagenetic cycling of arsenic in the sediments of eutrophic Baldeggersee, Switzerland",
abstract = "Sedimentation and benthic release of As was determined in Baldeggersee, a eutrophic lake in central Switzerland. Sediment traps recorded As sedimentation during 1994, including a flood event in spring. Diagenetic processes were studied using porewater profiles at the sediment–water interface and in deeper sediment strata deposited in the mesotrophic lake (before 1885). Sediment cores were used to calculate the accumulation and to construct the balance of sedimentation and remobilisation. The results showed that the lake sediment acts as an efficient sink for As. Only 22% of the particulate As flux reaching the sediment surface was remobilised at the sediment–water interface. The As accumulation in the recent varved section of the eutrophic lake was 40 mg As m−2 a−1. Iron reduction in older sediment caused a remobilisation of 1.2 mg As m−2 a−1. This upward flux from the deeper sediment was quantitatively immobilised in the recent sulfidic sediments. The flood event in spring contributed about 34% of the yearly sediment load and led to distinct peak profiles of dissolved As in the porewater. This evidence for rapid remobilisation disappeared within months.",
author = "Daniel Fabian and Zheng Zhou and Bernard Wehrli and Gabriela Friedl",
year = "2003",
month = sep,
doi = "10.1016/S0883-2927(03)00064-7",
language = "English",
volume = "18",
pages = "1497--1506",
journal = "Applied Geochemistry",
issn = "0883-2927",
publisher = "Elsevier Limited",
number = "9",

}

RIS

TY - JOUR

T1 - Diagenetic cycling of arsenic in the sediments of eutrophic Baldeggersee, Switzerland

AU - Fabian, Daniel

AU - Zhou, Zheng

AU - Wehrli, Bernard

AU - Friedl, Gabriela

PY - 2003/9

Y1 - 2003/9

N2 - Sedimentation and benthic release of As was determined in Baldeggersee, a eutrophic lake in central Switzerland. Sediment traps recorded As sedimentation during 1994, including a flood event in spring. Diagenetic processes were studied using porewater profiles at the sediment–water interface and in deeper sediment strata deposited in the mesotrophic lake (before 1885). Sediment cores were used to calculate the accumulation and to construct the balance of sedimentation and remobilisation. The results showed that the lake sediment acts as an efficient sink for As. Only 22% of the particulate As flux reaching the sediment surface was remobilised at the sediment–water interface. The As accumulation in the recent varved section of the eutrophic lake was 40 mg As m−2 a−1. Iron reduction in older sediment caused a remobilisation of 1.2 mg As m−2 a−1. This upward flux from the deeper sediment was quantitatively immobilised in the recent sulfidic sediments. The flood event in spring contributed about 34% of the yearly sediment load and led to distinct peak profiles of dissolved As in the porewater. This evidence for rapid remobilisation disappeared within months.

AB - Sedimentation and benthic release of As was determined in Baldeggersee, a eutrophic lake in central Switzerland. Sediment traps recorded As sedimentation during 1994, including a flood event in spring. Diagenetic processes were studied using porewater profiles at the sediment–water interface and in deeper sediment strata deposited in the mesotrophic lake (before 1885). Sediment cores were used to calculate the accumulation and to construct the balance of sedimentation and remobilisation. The results showed that the lake sediment acts as an efficient sink for As. Only 22% of the particulate As flux reaching the sediment surface was remobilised at the sediment–water interface. The As accumulation in the recent varved section of the eutrophic lake was 40 mg As m−2 a−1. Iron reduction in older sediment caused a remobilisation of 1.2 mg As m−2 a−1. This upward flux from the deeper sediment was quantitatively immobilised in the recent sulfidic sediments. The flood event in spring contributed about 34% of the yearly sediment load and led to distinct peak profiles of dissolved As in the porewater. This evidence for rapid remobilisation disappeared within months.

U2 - 10.1016/S0883-2927(03)00064-7

DO - 10.1016/S0883-2927(03)00064-7

M3 - Journal article

VL - 18

SP - 1497

EP - 1506

JO - Applied Geochemistry

JF - Applied Geochemistry

SN - 0883-2927

IS - 9

ER -