气候变化领域集成服务门户(CCPortal): Historical records of mercury deposition in dated sediment cores reveal the impacts of the legacy and present-day human activities in Todos os Santos Bay; Northeast Brazil

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DOI	10.1016/j.marpolbul.2019.06.041
	Historical records of mercury deposition in dated sediment cores reveal the impacts of the legacy and present-day human activities in Todos os Santos Bay; Northeast Brazil
	Hatje V.; Andrade R.L.B.; Jesus R.M.; Masqué P.; Albergaria-Barbosa A.C.R.; de Andrade J.B.; Santos A.C.S.S.
发表日期	2019
ISSN	0025326X
起始页码	396
结束页码	406
卷号	145
英文摘要	We determined depth profiles of total mercury (T-Hg) in six 210Pb-dated sediment cores from Todos os Santos Bay to reconstruct the history of anthropogenic Hg accumulation. We also assessed superficial sediments samples from five estuaries. T-Hg concentrations (5–3500 μg kg−1) presented a large spatial and temporal variability. T-Hg concentrations in Ribeira Bay increased up to 200-fold along time, whereas the fluxes of T-Hg are substantially higher (up to 10,000 fold) than present-day wet deposition for industrialized areas. Sedimentary records indicate that a chlor-alkali plant has been the main source of Hg pollution until the present, although the T-Hg records suggest that harbor, shrimp farming, and oil refinery activities, besides Hg atmospheric depositions, are important across the bay. Sediments in the Ribeira Bay act as an important Hg sink. If sediments are eroded or disturbed, they may release Hg, thus posing a serious risk to wildlife and ecosystem health. Capsule: Sedimentary cores provide data on preindustrial levels and also anthropogenic fluxes of Hg for the appraisal of the magnitude, processes and potential risks of the contamination. © 2019 Elsevier Ltd
英文关键词	Chlor-alkali plant; Legacy contaminants; Mercury fluxes; Sedimentation rate; Todos os Santos Bay; Tropical bay
语种	英语
scopus关键词	Atmospheric chemistry; Ecosystems; Health risks; Meteorological problems; Sedimentation; Sedimentology; Chlor-alkali plants; Mercury fluxes; Santos bays; Sedimentation rates; Tropical bay; Sediments; mercury; mercury; atmospheric deposition; concentration (composition); geoaccumulation; human activity; marine pollution; mercury (element); sediment core; sediment pollution; sedimentation rate; Article; atmospheric deposition; bioaccumulation; Brazil; chemical analysis; concentration (parameter); controlled study; environmental change; geographic distribution; human; human activities; industrial area; risk factor; sediment; wet deposition; bay; ecosystem; environmental monitoring; history; human activities; pollution; water pollutant; Bahia; Brazil; Todos os Santos Bay; Decapoda (Crustacea); Bays; Brazil; Ecosystem; Environmental Monitoring; Environmental Pollution; Geologic Sediments; History, 20th Century; History, 21st Century; Human Activities; Humans; Mercury; Water Pollutants, Chemical
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/149773
作者单位	CIEnAm & Inst. de Química, Universidade Federal da BahiaBahia, Brazil; SENAI-CIMATEC University Center, Salvador, Bahia 41650-010, Brazil; Centre for Marine Ecosystems Research, School of Science, Edith Cowan University, Joondalup, Australia; Departament de Física, Institut de Ciència i Tecnologia Ambientals, Universitat Autònoma de Barcelona, Bellaterra, Spain; Lab. de Estudo do Petróleo, Inst. De Geociências, Universidade Federal da BahiaBahia, Brazil
推荐引用方式 GB/T 7714	Hatje V.,Andrade R.L.B.,Jesus R.M.,et al. Historical records of mercury deposition in dated sediment cores reveal the impacts of the legacy and present-day human activities in Todos os Santos Bay; Northeast Brazil[J],2019,145.
APA	Hatje V..,Andrade R.L.B..,Jesus R.M..,Masqué P..,Albergaria-Barbosa A.C.R..,...&Santos A.C.S.S..(2019).Historical records of mercury deposition in dated sediment cores reveal the impacts of the legacy and present-day human activities in Todos os Santos Bay; Northeast Brazil.Marine Pollution Bulletin,145.
MLA	Hatje V.,et al."Historical records of mercury deposition in dated sediment cores reveal the impacts of the legacy and present-day human activities in Todos os Santos Bay; Northeast Brazil".Marine Pollution Bulletin 145(2019).