Assessment of mercury levels in modern sediments of the East Siberian Sea

被引：11

作者：

Aksentov, Kirill I. ^{[1
]}

Astakhov, Anatolii S. ^{[1
]}

Ivanov, Maksim V. ^{[1
]}

Shi, Xuefa ^{[2
]}

Hu, Limin ^{[3
]}

Alatortsev, Alexander V. ^{[1
]}

Sattarova, Valentina V. ^{[1
]}

Mariash, Anna A. ^{[1
]}

Melgunov, Mikhail S. ^{[4
]}

机构：

[1] Russian Acad Sci, RAS, Far Eastern Branch, VI Ilichev Pacific Oceanol Inst POI,FEB, 43 Baltiyskaya St, Vladivostok 690041, Russia

[2] Minist Nat Resources, Inst Oceanog 1, Key Lab Marine Geol & Metallogeny, Qingdao 266061, Peoples R China

[3] Ocean Univ China, Coll Marine Geosci, Key Lab Submarine Geosciences & Prospecting Techn, Qingdao 266100, Peoples R China

[4] Russian Acad Sci, Siberian Branch, VS Sobolev Inst Geol & Mineral, 3 Akad Koptyuga Av, Novosibirsk 630090, Russia

来源：

MARINE POLLUTION BULLETIN | 2021年 / 168卷

基金：

俄罗斯科学基金会;

关键词：

Mercury; Arctic sedimentation; Geochemistry; Recent chronology; Trace metal; East Siberian Sea; BOTTOM SEDIMENTS; SURFACE SEDIMENTS; TRACE-METALS; ARCTIC-OCEAN; CHUKCHI SEA; DIATOM DISTRIBUTION; ORGANIC-CARBON; HEAVY-METALS; GEOCHEMISTRY; ELEMENTS;

D O I：

10.1016/j.marpolbul.2021.112426

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Mercury (Hg) is an important environmental indicator of anthropogenic pollution. In this study, the Hg content in the bottom sediments of the East Siberian Sea was observed to range from 13 to 92 ppb, with an average of 36 ppb. Facies dependence was also observed and expressed as an increase in the Hg concentration in fine-sized sediments on the shelf edge and continental slope, compared to that in the sandy silts and sands of the inner shelf. The Hg accumulation in bottom sediments of the eastern part has increased over the past 150 years due to an increase in global emissions of anthropogenic Hg, which is caused by the transboundary transport of Hg to the Arctic. Moreover, changes in the Hg value, which occur due to the plankton arriving at the bottom sediments because of changes in hydrology and primary production, are thought to be associated with global warming.

引用

页数：8

共 65 条

[1]

Aksentov K. I., 2009, VESTN DALNEVOST OTD, V4, P115

[2] Mercury geochemistry of deep-sea sediment cores from the Kuril area, northwest Pacific [J].