Biogeosciences
Biogeosciences
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Articles | Volume 23, issue 7
Articles | Volume 23, issue 7
https://doi.org/10.5194/bg-23-2413-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-2413-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 7
Research article
 | 
13 Apr 2026
Research article |  | 13 Apr 2026

Pb and Fe flow through the mire-lake complex of Skogaryd catchment – a system under anthropogenic influence

Jonas Thomsen, Signe Lett, Leif Klemedtsson, Delia Rösel, Louise Rütting, Katja Salomon Johansen, and Tobias Rütting

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Short summary
Peatlands not only store large amounts of carbon but also harmful metals. In a Swedish wetland, we sampled and analysed peat and water samples and found that iron, lead and carbon are released together, especially after dry periods. Lead levels were often toxic and mostly came from past gasoline pollution. The lake trap some of this released lead down stream of the wetland. We showed that climate change may cause peat to break down, releasing carbon and harmful metals into nearby water systems.
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