Reemission of inorganic pollution from permafrost? – a freshwater hydrochemistry study in the lower Kolyma basin (North-East Siberia)

Permafrost regions are under particular pressure from climate change resulting in widespread landscape changes, which impact also freshwater chemistry. We investigated a snapshot of hydrochemistry in various freshwater environments in the lower Kolyma river basin (North-East Siberia, continuous perm...

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Main Authors: Szumińska, Danuta, Koziol, Krystyna, Chalov, Sergiej R., Efimov, Vasilii A., Frankowski, Marcin, Lehmann-Konera, Sara, Polkowska, Żaneta
Format: Other/Unknown Material
Language:unknown
Published: Authorea, Inc. 2022
Subjects:
Ice
Online Access:http://dx.doi.org/10.22541/au.167155205.57797751/v1
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spelling crwinnower:10.22541/au.167155205.57797751/v1 2024-06-02T08:07:59+00:00 Reemission of inorganic pollution from permafrost? – a freshwater hydrochemistry study in the lower Kolyma basin (North-East Siberia) Szumińska, Danuta Koziol, Krystyna Chalov, Sergiej R. Efimov, Vasilii A. Frankowski, Marcin Lehmann-Konera, Sara Polkowska, Żaneta 2022 http://dx.doi.org/10.22541/au.167155205.57797751/v1 unknown Authorea, Inc. posted-content 2022 crwinnower https://doi.org/10.22541/au.167155205.57797751/v1 2024-05-07T14:19:20Z Permafrost regions are under particular pressure from climate change resulting in widespread landscape changes, which impact also freshwater chemistry. We investigated a snapshot of hydrochemistry in various freshwater environments in the lower Kolyma river basin (North-East Siberia, continuous permafrost zone) to explore the mobility of metals, metalloids and non-metals resulting from permafrost thaw. Particular attention was focused on heavy metals as contaminants potentially released from the secondary source in the permafrozen Yedoma complex. Permafrost creeks represented the Mg-Ca-Na-HCO -Cl-SO ionic water type (with mineralisation in the range 600-800 mg/L), while permafrost ice and thermokarst lake waters were the HCO -Ca-Mg type. Multiple heavy metals (As, Cu, Co, Mn and Ni) showed much higher dissolved phase concentrations in permafrost creeks and ice than in Kolyma and its tributaries, and only in the permafrost samples and one Kolyma tributary have we detected dissolved Ti or Hg. In thermokarst lakes, several metal and metalloid dissolved concentrations increased with water depth (Fe, Mn, Ni and Zn - in both lakes; Al, Cu, K, Sb, Sr and Pb in either lake), reaching 1370 µg/L Cu, 4610 µg/L Mn, and 687 µg/L Zn in the bottom water layers. Permafrost-related waters were also enriched in dissolved phosphorus (up to 512 µg/L in Yedoma-fed creeks). The impact of permafrost thaw on river and lake water chemistry is a complex problem which needs to be considered both in the context of legacy permafrost shrinkage and the interference of the deepening active layer with newly deposited anthropogenic contaminants. Other/Unknown Material Ice kolyma river permafrost Thermokarst Siberia The Winnower Kolyma ENVELOPE(161.000,161.000,69.500,69.500)
institution Open Polar
collection The Winnower
op_collection_id crwinnower
language unknown
description Permafrost regions are under particular pressure from climate change resulting in widespread landscape changes, which impact also freshwater chemistry. We investigated a snapshot of hydrochemistry in various freshwater environments in the lower Kolyma river basin (North-East Siberia, continuous permafrost zone) to explore the mobility of metals, metalloids and non-metals resulting from permafrost thaw. Particular attention was focused on heavy metals as contaminants potentially released from the secondary source in the permafrozen Yedoma complex. Permafrost creeks represented the Mg-Ca-Na-HCO -Cl-SO ionic water type (with mineralisation in the range 600-800 mg/L), while permafrost ice and thermokarst lake waters were the HCO -Ca-Mg type. Multiple heavy metals (As, Cu, Co, Mn and Ni) showed much higher dissolved phase concentrations in permafrost creeks and ice than in Kolyma and its tributaries, and only in the permafrost samples and one Kolyma tributary have we detected dissolved Ti or Hg. In thermokarst lakes, several metal and metalloid dissolved concentrations increased with water depth (Fe, Mn, Ni and Zn - in both lakes; Al, Cu, K, Sb, Sr and Pb in either lake), reaching 1370 µg/L Cu, 4610 µg/L Mn, and 687 µg/L Zn in the bottom water layers. Permafrost-related waters were also enriched in dissolved phosphorus (up to 512 µg/L in Yedoma-fed creeks). The impact of permafrost thaw on river and lake water chemistry is a complex problem which needs to be considered both in the context of legacy permafrost shrinkage and the interference of the deepening active layer with newly deposited anthropogenic contaminants.
format Other/Unknown Material
author Szumińska, Danuta
Koziol, Krystyna
Chalov, Sergiej R.
Efimov, Vasilii A.
Frankowski, Marcin
Lehmann-Konera, Sara
Polkowska, Żaneta
spellingShingle Szumińska, Danuta
Koziol, Krystyna
Chalov, Sergiej R.
Efimov, Vasilii A.
Frankowski, Marcin
Lehmann-Konera, Sara
Polkowska, Żaneta
Reemission of inorganic pollution from permafrost? – a freshwater hydrochemistry study in the lower Kolyma basin (North-East Siberia)
author_facet Szumińska, Danuta
Koziol, Krystyna
Chalov, Sergiej R.
Efimov, Vasilii A.
Frankowski, Marcin
Lehmann-Konera, Sara
Polkowska, Żaneta
author_sort Szumińska, Danuta
title Reemission of inorganic pollution from permafrost? – a freshwater hydrochemistry study in the lower Kolyma basin (North-East Siberia)
title_short Reemission of inorganic pollution from permafrost? – a freshwater hydrochemistry study in the lower Kolyma basin (North-East Siberia)
title_full Reemission of inorganic pollution from permafrost? – a freshwater hydrochemistry study in the lower Kolyma basin (North-East Siberia)
title_fullStr Reemission of inorganic pollution from permafrost? – a freshwater hydrochemistry study in the lower Kolyma basin (North-East Siberia)
title_full_unstemmed Reemission of inorganic pollution from permafrost? – a freshwater hydrochemistry study in the lower Kolyma basin (North-East Siberia)
title_sort reemission of inorganic pollution from permafrost? – a freshwater hydrochemistry study in the lower kolyma basin (north-east siberia)
publisher Authorea, Inc.
publishDate 2022
url http://dx.doi.org/10.22541/au.167155205.57797751/v1
long_lat ENVELOPE(161.000,161.000,69.500,69.500)
geographic Kolyma
geographic_facet Kolyma
genre Ice
kolyma river
permafrost
Thermokarst
Siberia
genre_facet Ice
kolyma river
permafrost
Thermokarst
Siberia
op_doi https://doi.org/10.22541/au.167155205.57797751/v1
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