Input of terrestrial organic matter linked to deglaciation increased mercury transport to the Svalbard fjords
Deglaciation has accelerated the transport of minerals as well as modern and ancient organic matter from land to fjord sediments in Spitsbergen, Svalbard, in the European Arctic Ocean. Consequently, such sediments may contain significant levels of total mercury (THg) bound to terrestrial organic mat...
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NATURE PUBLISHING GROUP
2020
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Online Access: | https://oasis.postech.ac.kr/handle/2014.oak/101768 https://doi.org/10.1038/s41598-020-60261-6 |
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ftponangunivst:oai:oasis.postech.ac.kr:2014.oak/101768 2023-05-15T14:54:43+02:00 Input of terrestrial organic matter linked to deglaciation increased mercury transport to the Svalbard fjords KWON, SAE YUN KIM, HARYUN LEE, KITACK LIM, DHONGIL HAN, SEUNGHEE KIM, TAE-WOOK JOO, YOUNG JI LIM, JAESOO KANG, MOO-HEE NAM, SEUNG-IL KWON, SAE YUN LEE, KITACK 2020-02-26 https://oasis.postech.ac.kr/handle/2014.oak/101768 https://doi.org/10.1038/s41598-020-60261-6 English eng NATURE PUBLISHING GROUP SCIENTIFIC REPORTS Multidisciplinary Sciences Science & Technology - Other Topics 2045-2322 https://oasis.postech.ac.kr/handle/2014.oak/101768 doi:10.1038/s41598-020-60261-6 40567 SCIENTIFIC REPORTS, v.10, no.1 000563208400003 2-s2.0-85080063576 ATMOSPHERIC MERCURY ARCTIC FJORD ANTHROPOGENIC MERCURY ISOTOPIC COMPOSITION METAL CONTAMINATION TIDEWATER GLACIER STABLE-ISOTOPES LAKE-SEDIMENTS CARBON BURIAL MARINE Article ART 2020 ftponangunivst https://doi.org/10.1038/s41598-020-60261-6 2022-10-20T21:00:12Z Deglaciation has accelerated the transport of minerals as well as modern and ancient organic matter from land to fjord sediments in Spitsbergen, Svalbard, in the European Arctic Ocean. Consequently, such sediments may contain significant levels of total mercury (THg) bound to terrestrial organic matter. The present study compared THg contents in surface sediments from three fjord settings in Spitsbergen: Hornsund in the southern Spitsbergen, which has high annual volume of loss glacier and receives sediment from multiple tidewater glaciers, Dicksonfjorden in the central Spitsbergen, which receives sediment from glacifluvial rivers, and Wijdefjorden in the northern Spitsbergen, which receive sediments from a mixture of tidewater glaciers and glacifluvial rivers. Our results showed that the THg (52 +/- 15 ng g(-1)) bound to organic matter (OM) was the highest in the Hornsund surface sediments, where the glacier loss (0.44 km(3) yr(-1)) and organic carbon accumulation rates (9.3 similar to 49.4 g m(-2) yr(-1)) were elevated compared to other fjords. Furthermore, the delta C-13 (-27 similar to -24 parts per thousand) and delta S-34 values (-10 similar to 15 parts per thousand) of OM indicated that most of OM were originated from terrestrial sources. Thus, the temperature-driven glacial melting could release more OM originating from the meltwater or terrestrial materials, which are available for THg binding in the European Arctic fjord ecosystems. 1 1 Y scie scopus Article in Journal/Newspaper Arctic Arctic Ocean glacier Hornsund Svalbard Tidewater Wijdefjord* Spitsbergen Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS) Arctic Arctic Ocean Dicksonfjorden ENVELOPE(15.291,15.291,78.710,78.710) Hornsund ENVELOPE(15.865,15.865,76.979,76.979) Svalbard Wijdefjorden ENVELOPE(15.569,15.569,79.543,79.543) Scientific Reports 10 1 |
institution |
Open Polar |
collection |
Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS) |
op_collection_id |
ftponangunivst |
language |
English |
topic |
ATMOSPHERIC MERCURY ARCTIC FJORD ANTHROPOGENIC MERCURY ISOTOPIC COMPOSITION METAL CONTAMINATION TIDEWATER GLACIER STABLE-ISOTOPES LAKE-SEDIMENTS CARBON BURIAL MARINE |
spellingShingle |
ATMOSPHERIC MERCURY ARCTIC FJORD ANTHROPOGENIC MERCURY ISOTOPIC COMPOSITION METAL CONTAMINATION TIDEWATER GLACIER STABLE-ISOTOPES LAKE-SEDIMENTS CARBON BURIAL MARINE KWON, SAE YUN KIM, HARYUN LEE, KITACK LIM, DHONGIL HAN, SEUNGHEE KIM, TAE-WOOK JOO, YOUNG JI LIM, JAESOO KANG, MOO-HEE NAM, SEUNG-IL Input of terrestrial organic matter linked to deglaciation increased mercury transport to the Svalbard fjords |
topic_facet |
ATMOSPHERIC MERCURY ARCTIC FJORD ANTHROPOGENIC MERCURY ISOTOPIC COMPOSITION METAL CONTAMINATION TIDEWATER GLACIER STABLE-ISOTOPES LAKE-SEDIMENTS CARBON BURIAL MARINE |
description |
Deglaciation has accelerated the transport of minerals as well as modern and ancient organic matter from land to fjord sediments in Spitsbergen, Svalbard, in the European Arctic Ocean. Consequently, such sediments may contain significant levels of total mercury (THg) bound to terrestrial organic matter. The present study compared THg contents in surface sediments from three fjord settings in Spitsbergen: Hornsund in the southern Spitsbergen, which has high annual volume of loss glacier and receives sediment from multiple tidewater glaciers, Dicksonfjorden in the central Spitsbergen, which receives sediment from glacifluvial rivers, and Wijdefjorden in the northern Spitsbergen, which receive sediments from a mixture of tidewater glaciers and glacifluvial rivers. Our results showed that the THg (52 +/- 15 ng g(-1)) bound to organic matter (OM) was the highest in the Hornsund surface sediments, where the glacier loss (0.44 km(3) yr(-1)) and organic carbon accumulation rates (9.3 similar to 49.4 g m(-2) yr(-1)) were elevated compared to other fjords. Furthermore, the delta C-13 (-27 similar to -24 parts per thousand) and delta S-34 values (-10 similar to 15 parts per thousand) of OM indicated that most of OM were originated from terrestrial sources. Thus, the temperature-driven glacial melting could release more OM originating from the meltwater or terrestrial materials, which are available for THg binding in the European Arctic fjord ecosystems. 1 1 Y scie scopus |
author2 |
KWON, SAE YUN LEE, KITACK |
format |
Article in Journal/Newspaper |
author |
KWON, SAE YUN KIM, HARYUN LEE, KITACK LIM, DHONGIL HAN, SEUNGHEE KIM, TAE-WOOK JOO, YOUNG JI LIM, JAESOO KANG, MOO-HEE NAM, SEUNG-IL |
author_facet |
KWON, SAE YUN KIM, HARYUN LEE, KITACK LIM, DHONGIL HAN, SEUNGHEE KIM, TAE-WOOK JOO, YOUNG JI LIM, JAESOO KANG, MOO-HEE NAM, SEUNG-IL |
author_sort |
KWON, SAE YUN |
title |
Input of terrestrial organic matter linked to deglaciation increased mercury transport to the Svalbard fjords |
title_short |
Input of terrestrial organic matter linked to deglaciation increased mercury transport to the Svalbard fjords |
title_full |
Input of terrestrial organic matter linked to deglaciation increased mercury transport to the Svalbard fjords |
title_fullStr |
Input of terrestrial organic matter linked to deglaciation increased mercury transport to the Svalbard fjords |
title_full_unstemmed |
Input of terrestrial organic matter linked to deglaciation increased mercury transport to the Svalbard fjords |
title_sort |
input of terrestrial organic matter linked to deglaciation increased mercury transport to the svalbard fjords |
publisher |
NATURE PUBLISHING GROUP |
publishDate |
2020 |
url |
https://oasis.postech.ac.kr/handle/2014.oak/101768 https://doi.org/10.1038/s41598-020-60261-6 |
long_lat |
ENVELOPE(15.291,15.291,78.710,78.710) ENVELOPE(15.865,15.865,76.979,76.979) ENVELOPE(15.569,15.569,79.543,79.543) |
geographic |
Arctic Arctic Ocean Dicksonfjorden Hornsund Svalbard Wijdefjorden |
geographic_facet |
Arctic Arctic Ocean Dicksonfjorden Hornsund Svalbard Wijdefjorden |
genre |
Arctic Arctic Ocean glacier Hornsund Svalbard Tidewater Wijdefjord* Spitsbergen |
genre_facet |
Arctic Arctic Ocean glacier Hornsund Svalbard Tidewater Wijdefjord* Spitsbergen |
op_relation |
SCIENTIFIC REPORTS Multidisciplinary Sciences Science & Technology - Other Topics 2045-2322 https://oasis.postech.ac.kr/handle/2014.oak/101768 doi:10.1038/s41598-020-60261-6 40567 SCIENTIFIC REPORTS, v.10, no.1 000563208400003 2-s2.0-85080063576 |
op_doi |
https://doi.org/10.1038/s41598-020-60261-6 |
container_title |
Scientific Reports |
container_volume |
10 |
container_issue |
1 |
_version_ |
1766326486076227584 |