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Article

Major, Trace and Rare Earth Element Distribution in Water, Suspended Particulate Matter and Stream Sediments of the Ob River Mouth

1
Research Institute of Ecology and Natural Resource Management, Tyumen State University, 625003 Tyumen, Russia
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Tyumen Scientific Centre, Siberian Branch of Russian Academy of Sciences, 625026 Tyumen, Russia
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Institute of Earth Sciences, Tyumen State University, 625003 Tyumen, Russia
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Institute for Water and Environmental Problems of Siberian Branch of the Russian Academy of Sciences, 656038 Barnaul, Russia
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Arctic Research Center of the Yamal-Nenets Autonomous District, 629008 Salekhard, Russia
*
Author to whom correspondence should be addressed.
Academic Editor: Tatyana Moiseenko
Water 2022, 14(15), 2442; https://doi.org/10.3390/w14152442
Received: 26 June 2022 / Revised: 3 August 2022 / Accepted: 4 August 2022 / Published: 6 August 2022
(This article belongs to the Special Issue Water Resources under Growing Anthropogenic Loads)
Ongoing climatic changes are influencing the volume and composition of the river waters that enter the Arctic Basin. This hydrochemical study was conducted within the mouth of the Ob River, which is one of the world’s largest rivers, providing 15% of the Arctic Ocean’s total intake. Concentrations of suspended and dissolved elements were determined using ICP–MS and ICP–AES. As compared to the world average values, the Ob river water had higher concentrations of dissolved P, As, Cu, Zn, Pb and Sb, i.e., the elements that form soluble organo-mineral complexes. The composition of suspended matter was characterized by low concentrations of most trace elements (Cd, Cr, Co, Cu, Mo, Al, Ni, Pb, V) due to their low contents in peat soils within the river drainage basin. Concentrations of dissolved forms were many times lower than concentrations of suspended forms in Al, Fe, Mn, Zn, Cr, Co, Ti, Sc, and all rare earth elements. Total concentrations of Ni, Cu, Bi, Pb, W in the river water increased by 2.5 to 4.2 times during the summer. The effects of climate change, which can cause an increase in the discharge of solid particles from thawing permafrost, are likely to lead to an increase in the discharge of certain elements into the Ob River estuary. View Full-Text
Keywords: Arctic basin; stream runoff; trace elements; total suspended matter; dissolved elements; bottom sediments Arctic basin; stream runoff; trace elements; total suspended matter; dissolved elements; bottom sediments
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MDPI and ACS Style

Soromotin, A.; Moskovchenko, D.; Khoroshavin, V.; Prikhodko, N.; Puzanov, A.; Kirillov, V.; Koveshnikov, M.; Krylova, E.; Krasnenko, A.; Pechkin, A. Major, Trace and Rare Earth Element Distribution in Water, Suspended Particulate Matter and Stream Sediments of the Ob River Mouth. Water 2022, 14, 2442. https://doi.org/10.3390/w14152442

AMA Style

Soromotin A, Moskovchenko D, Khoroshavin V, Prikhodko N, Puzanov A, Kirillov V, Koveshnikov M, Krylova E, Krasnenko A, Pechkin A. Major, Trace and Rare Earth Element Distribution in Water, Suspended Particulate Matter and Stream Sediments of the Ob River Mouth. Water. 2022; 14(15):2442. https://doi.org/10.3390/w14152442

Chicago/Turabian Style

Soromotin, Andrei, Dmitriy Moskovchenko, Vitaliy Khoroshavin, Nikolay Prikhodko, Alexander Puzanov, Vladimir Kirillov, Mikhail Koveshnikov, Eugenia Krylova, Aleksander Krasnenko, and Aleksander Pechkin. 2022. "Major, Trace and Rare Earth Element Distribution in Water, Suspended Particulate Matter and Stream Sediments of the Ob River Mouth" Water 14, no. 15: 2442. https://doi.org/10.3390/w14152442

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