Biogeosciences
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Articles | Volume 23, issue 18
Articles | Volume 23, issue 18
https://doi.org/10.5194/bg-23-6613-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-6613-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 18
Research article
 | 
21 Sep 2026
Research article |  | 21 Sep 2026

Dynamic CO2 evasion and colloidal control of trace metals in the Lower Lena River

Yuri Ya. Kolesnichenko, Sergey N. Vorobyev, Viktor A. Nikitkin, Oleg V. Dudarev, Denis V. Chernykh, Eduard A. Spivak, Arkadiy V. Kurilenko, Vladimir A. Kholodov, Igor P. Semiletov, and Oleg S. Pokrovsky

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Short summary
We studied 800 kilometers of the lower Lena River in Siberia to understand how this large Arctic river releases climate-warming gases and carries natural elements from frozen landscapes to the ocean. Using boat-based measurements and water samples, we found that CO2 release changes strongly over short distances, while CH4 variations are very small. Most dissolved carbon stayed stable, and many metals were carried by tiny natural particles. Warming and thawing ground may shift these balances.
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