Low and Declining Mercury in Arctic Russian Rivers
Identifieur interne : 000104 ( Main/Exploration ); précédent : 000103; suivant : 000105Low and Declining Mercury in Arctic Russian Rivers
Auteurs : Leandro Castello [États-Unis] ; Alexander V. Zhulidov [Russie] ; Tatiana Yu. Gurtovaya [Russie] ; Richard D. Robarts [Canada] ; Robert M. Holmes [États-Unis] ; Daniel A. Zhulidov [Russie] ; Vladimir S. Lysenko [Russie] ; Robert G. M. Spencer [États-Unis]Source :
- Environmental science & technology [ 0013-936X ] ; 2014.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Mercure.
English descriptors
- KwdEn :
Abstract
Mercury (Hg) dynamics in the Arctic is receiving increasing attention, but further understanding is limited by a lack of studies in Russia, which encompasses the majority of the pan-Arctic watershed. This study reports Hg concentrations and trends in burbot (Lota lota) from the Lena and Mezen Rivers in the Russian Arctic, and assesses the extent to which they differ from those found in burbot in arctic rivers elsewhere. Mercury concentrations in burbot in the Lena and Mezen Rivers were found to be generally lower than in 23 other locations, most of which are in the Mackenzie River Basin (Canada). Mercury concentrations in burbot in the Lena and Mezen Rivers also were found to have been declining at an annual rate of 2.3% while they have been increasing in the Mackenzie River Basin at annual rates between 2.2 and 5.1% during roughly the same time period. These contrasting patterns in Hg in burbot across the pan-Arctic may be explained by geographic heterogeneity in controlling processes, including riverine particulate material loads, historically changing atmospheric inputs, postdepositional processes, and climate change impacts.
Affiliations:
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Zhulidov</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>South Russian Centre for Preparation and Implementation of International Projects</s1><s2>Rostov-on-Don</s2><s3>RUS</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>Russie</country><wicri:noRegion>South Russian Centre for Preparation and Implementation of International Projects</wicri:noRegion></affiliation></author><author><name sortKey="Gurtovaya, Tatiana Yu" sort="Gurtovaya, Tatiana Yu" uniqKey="Gurtovaya T" first="Tatiana Yu." last="Gurtovaya">Tatiana Yu. Gurtovaya</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>South Russian Centre for Preparation and Implementation of International Projects</s1><s2>Rostov-on-Don</s2><s3>RUS</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>Russie</country><wicri:noRegion>South Russian Centre for Preparation and Implementation of International Projects</wicri:noRegion></affiliation></author><author><name sortKey="Robarts, Richard D" sort="Robarts, Richard D" uniqKey="Robarts R" first="Richard D." last="Robarts">Richard D. Robarts</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>World Water and Climate Foundation</s1><s2>Saskatoon, Saskatchewan</s2><s3>CAN</s3><sZ>4 aut.</sZ></inist:fA14><country>Canada</country><wicri:noRegion>World Water and Climate Foundation</wicri:noRegion></affiliation></author><author><name sortKey="Holmes, Robert M" sort="Holmes, Robert M" uniqKey="Holmes R" first="Robert M." last="Holmes">Robert M. Holmes</name><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>Woods Hole Research Center</s1><s2>Falmouth, Massachusetts 02540</s2><s3>USA</s3><sZ>5 aut.</sZ><sZ>8 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Woods Hole Research Center</wicri:noRegion></affiliation></author><author><name sortKey="Zhulidov, Daniel A" sort="Zhulidov, Daniel A" uniqKey="Zhulidov D" first="Daniel A." last="Zhulidov">Daniel A. Zhulidov</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>South Russian Centre for Preparation and Implementation of International Projects</s1><s2>Rostov-on-Don</s2><s3>RUS</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>Russie</country><wicri:noRegion>South Russian Centre for Preparation and Implementation of International Projects</wicri:noRegion></affiliation></author><author><name sortKey="Lysenko, Vladimir S" sort="Lysenko, Vladimir S" uniqKey="Lysenko V" first="Vladimir S." last="Lysenko">Vladimir S. Lysenko</name><affiliation wicri:level="1"><inist:fA14 i1="05"><s1>South Federal University, Institute of Biology</s1><s2>Rostov-on-Don</s2><s3>RUS</s3><sZ>7 aut.</sZ></inist:fA14><country>Russie</country><wicri:noRegion>Rostov-on-Don</wicri:noRegion></affiliation></author><author><name sortKey="Spencer, Robert G M" sort="Spencer, Robert G M" uniqKey="Spencer R" first="Robert G. M." last="Spencer">Robert G. M. Spencer</name><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>Woods Hole Research Center</s1><s2>Falmouth, Massachusetts 02540</s2><s3>USA</s3><sZ>5 aut.</sZ><sZ>8 aut.</sZ></inist:fA14><country>États-Unis</country><wicri:noRegion>Woods Hole Research Center</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Environmental science & technology</title><title level="j" type="abbreviated">Environ. sci. technol.</title><idno type="ISSN">0013-936X</idno><imprint><date when="2014">2014</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Environmental science & technology</title><title level="j" type="abbreviated">Environ. sci. technol.</title><idno type="ISSN">0013-936X</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Lota lota</term><term>Mercury</term><term>Rivers</term><term>Russian Arctic</term><term>Stream</term><term>Surface water</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Mercure</term><term>Arctique Russie</term><term>Cours eau</term><term>Rivière</term><term>Lota lota</term><term>Eau surface</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Mercure</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Mercury (Hg) dynamics in the Arctic is receiving increasing attention, but further understanding is limited by a lack of studies in Russia, which encompasses the majority of the pan-Arctic watershed. This study reports Hg concentrations and trends in burbot (Lota lota) from the Lena and Mezen Rivers in the Russian Arctic, and assesses the extent to which they differ from those found in burbot in arctic rivers elsewhere. Mercury concentrations in burbot in the Lena and Mezen Rivers were found to be generally lower than in 23 other locations, most of which are in the Mackenzie River Basin (Canada). Mercury concentrations in burbot in the Lena and Mezen Rivers also were found to have been declining at an annual rate of 2.3% while they have been increasing in the Mackenzie River Basin at annual rates between 2.2 and 5.1% during roughly the same time period. These contrasting patterns in Hg in burbot across the pan-Arctic may be explained by geographic heterogeneity in controlling processes, including riverine particulate material loads, historically changing atmospheric inputs, postdepositional processes, and climate change impacts.</div></front></TEI><affiliations><list><country><li>Canada</li><li>Russie</li><li>États-Unis</li></country></list><tree><country name="États-Unis"><noRegion><name sortKey="Castello, Leandro" sort="Castello, Leandro" uniqKey="Castello L" first="Leandro" last="Castello">Leandro Castello</name></noRegion><name sortKey="Holmes, Robert M" sort="Holmes, Robert M" uniqKey="Holmes R" first="Robert M." last="Holmes">Robert M. Holmes</name><name sortKey="Spencer, Robert G M" sort="Spencer, Robert G M" uniqKey="Spencer R" first="Robert G. M." last="Spencer">Robert G. M. Spencer</name></country><country name="Russie"><noRegion><name sortKey="Zhulidov, Alexander V" sort="Zhulidov, Alexander V" uniqKey="Zhulidov A" first="Alexander V." last="Zhulidov">Alexander V. Zhulidov</name></noRegion><name sortKey="Gurtovaya, Tatiana Yu" sort="Gurtovaya, Tatiana Yu" uniqKey="Gurtovaya T" first="Tatiana Yu." last="Gurtovaya">Tatiana Yu. Gurtovaya</name><name sortKey="Lysenko, Vladimir S" sort="Lysenko, Vladimir S" uniqKey="Lysenko V" first="Vladimir S." last="Lysenko">Vladimir S. Lysenko</name><name sortKey="Zhulidov, Daniel A" sort="Zhulidov, Daniel A" uniqKey="Zhulidov D" first="Daniel A." last="Zhulidov">Daniel A. Zhulidov</name></country><country name="Canada"><noRegion><name sortKey="Robarts, Richard D" sort="Robarts, Richard D" uniqKey="Robarts R" first="Richard D." last="Robarts">Richard D. Robarts</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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