期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 654, 期 -, 页码 801-810出版社
ELSEVIER
DOI: 10.1016/j.scitotenv.2018.11.076
关键词
Total mercury; Anthropogenic Hg; Ocean sediment
资金
- National Fisheries Research and Development Institute [R2018048]
- Mid-career Researcher Program of the National Research Foundation of Korea (NRF) [2018R1A2A1A19019281]
- NRF [2013K1A1A2A02078278, 2015M1A5A1037243, PN18090]
- Iedo Ocean Research Station project of Korea Hydrographic and Oceanographic Agency
- Management of Marine Organisms causing Ecological Disturbance and Harmful Effects - Ministry of Oceans and Fisheries (MOF)
- National Marine Biodiversity Institute Research Program [2018M00500]
- National Research Foundation of Korea [2013K1A1A2A02078278, 2015M1A5A1037243, 2018R1A2A1A19019281] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Over the past century. the addition of anthropogenic mercury (Hg-ANTH) to vast areas of North Pacific marginal seas adjacent to the northeast Asian continent has tripled. Analysis of sediment cores showed that the rate of Hg-ANTH addition (Hg-ANTH flux) was greatest in the East China and Yellow Seas (9.1 mu g m(-2) yr(-1)) in the vicinity of China ( the source continent), but was small in the Bering and western Arctic Ocean (Chukchi Sea) (0.9 mu g m(-2) yr(-1): the regions furthest from China). Our results show that Hg-ANTH has reached open ocean sedimentary environments over extended areas of the northwestern Pacific Ocean, via the formation of organic-mercury complexes and deposition. The implication of these findings is that the addition of Hg-ANTH (via atmospheric deposition and riverine input) to the ocean environment is responsible for elevated Hg flux into sedimentary environments in the northwest Pacific Ocean. (C) 2018 Elsevier B.V. All rights reserved.
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