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DOI	10.1016/j.marpolbul.2019.110659
	Mechanisms of Pb supply and removal in two remote (sub-)polar ocean regions
	Schlosser C.; Garbe-Schönberg D.
发表日期	2019
ISSN	0025326X
卷号	149
英文摘要	Today, four decades past peak anthropogenic lead emissions in the 1970s, dissolved lead (DPb) concentrations in the surface ocean remain elevated. To constrain contemporary sources and sinks of DPb, we studied high latitude surface waters of the North Atlantic and the Southern Ocean. We observed high concentrations of surface DPb (46 pmol kg-1) near South Georgia in the Southern Ocean, sourced from glacial flour, while offshore DPb concentrations of 3–9 pmol kg-1 were attributable to aeolian Pb inputs mainly from Patagonia. Dissolved Pb in the North Atlantic (4–29 pmol kg-1) originated from aeolian particles from Northern Hemisphere sources. Extremely low DPb concentrations of <5 pmol kg-1 found in both polar regions were the result of scavenging of DPb onto biogenic particles formed during spatially confined phytoplankton blooms, indicating that changes in phytoplankton abundance may alter the residence time and distribution of DPb in the surface ocean. © 2019 Elsevier Ltd
英文关键词	Dissolved lead (DPb); Dust; Glacial flour; High latitude oceans; Scavenging; Trace metals
语种	英语
scopus关键词	Dissolution; Dust; Glacial geology; Offshore oil well production; Phytoplankton; Residence time distribution; Scavenging; Trace elements; Aeolian particles; Dissolved lead (DPb); Glacial flour; High Latitudes; Northern Hemispheres; Phytoplankton abundances; Phytoplankton bloom; Trace metal; Oceanography; lead; concentration (composition); dust; lead; phytoplankton; residence time; scavenging (chemistry); spatial distribution; trace metal; algal bloom; Article; Atlantic Ocean; concentration (parameter); environmental release; flour; heavy metal removal; retention time; sea surface waters; South Georgia and the South Sandwich Islands; Southern Ocean; Antarctica; Atlantic Ocean; Atlantic Ocean (North); Patagonia; South Georgia; Southern Ocean
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/149489
作者单位	GEOMAR Helmholtz-Centre for Ocean Research Kiel, Wischhofstr. 1-3, Kiel, 24148, Germany; Institute of Geosciences, Kiel University, Ludewig-Meyn-Straße 10, Kiel, 24118, Germany
推荐引用方式 GB/T 7714	Schlosser C.,Garbe-Schönberg D.. Mechanisms of Pb supply and removal in two remote (sub-)polar ocean regions[J],2019,149.
APA	Schlosser C.,&Garbe-Schönberg D..(2019).Mechanisms of Pb supply and removal in two remote (sub-)polar ocean regions.Marine Pollution Bulletin,149.
MLA	Schlosser C.,et al."Mechanisms of Pb supply and removal in two remote (sub-)polar ocean regions".Marine Pollution Bulletin 149(2019).