Journal ArticleDOI
First data on trace metal level and behaviour in two major Arctic river-estuarine systems (Ob and Yenisey) and in the adjacent Kara Sea, Russia
Minhan Dai,Jean-Marie Martin +1 more
TLDR
In this article, the authors show that colloidal material plays a fundamental role in determining the behavior of both conservative and non-conservative trace metals during estuarine mixing, and that colloids may control to a large extent the fate of trace metals as well as their net input from the rivers to the Kara Sea.About:
This article is published in Earth and Planetary Science Letters.The article was published on 1995-04-01. It has received 228 citations till now. The article focuses on the topics: Trace metal & Trace element.read more
Citations
More filters
Journal ArticleDOI
Contaminants in the Canadian Arctic: 5 years of progress in understanding sources, occurrence and pathways.
Robie W. Macdonald,Leonard A. Barrie,Terry F. Bidleman,Miriam L. Diamond,Dennis Gregor,R. G. Semkin,William M. J. Strachan,Yi-Fan Li,Frank Wania,Mehran Alaee,L.B. Alexeeva,Sean Backus,R. Bailey,J.M. Bewers,Charles Gobeil,Crispin J. Halsall,Tom Harner,Julian T. Hoff,Liisa M. Jantunen,W.L. Lockhart,Donald Mackay,Derek C. G. Muir,Janusz A. Pudykiewicz,Kenneth J. Reimer,John N. Smith,Gary A. Stern,W.H. Schroeder,R. Wagemann,Mark B. Yunker +28 more
TL;DR: New knowledge developed under the NCP on the sources, occurrence and pathways of contaminants (organochlorines, Hg, Pb and Cd, PAHs, artificial radionuclides) are highlighted and compelling evidence for close connectivity between the global emission of contaminants from industrial and agricultural activities and the Arctic is provided.
Book ChapterDOI
Trace Elements in River Waters
TL;DR: In this article, the authors reviewed the recent literature on trace elements in rivers, in particular by incorporating the results derived from recent ICP-MS measurements, and the basic questions which they want to address are the following: What are the trace element levels in river waters? What controls their abundance in rivers and fractionation in the weathering+transport system?
Journal ArticleDOI
A critical look at iron paleoredox proxies: New insights from modern euxinic marine basins
Timothy W. Lyons,Silke Severmann +1 more
TL;DR: In this paper, the authors show that high siliciclastic accumulation rates can swamp the enrichment mechanism, resulting in only intermediate DOP values for euxinic sediments and FeT/Al ratios that mimic the oxic shelf.
Journal ArticleDOI
Iron colloids/organic matter associated transport of major and trace elements in small boreal rivers and their estuaries (NW Russia)
Oleg S. Pokrovsky,Jacques Schott +1 more
TL;DR: In this paper, the chemical status of major and trace elements (TE) in various boreal small rivers and watershed has been investigated along a 1500-km transect of NW Russia.
Journal ArticleDOI
Chemical weathering in the drainage basin of a tropical watershed (Nsimi-Zoetele site, Cameroon) : comparison between organic-poor and organic-rich waters
Jérôme Viers,Bernard Dupré,Mireille Polvé,Jacques Schott,Jean-Louis Dandurand,Jean-Jacques Braun +5 more
TL;DR: In this paper, the role of organic colloids on mineral weathering and transport of elements in natural waters was investigated in a small catchment (Nsimi-Zoetele, Cameroon).
References
More filters
Journal ArticleDOI
Bulk chemical characteristics of dissolved organic matter in the ocean
TL;DR: Tangential-flow ultrafiltration was shown to recover milligram amounts of >1000 daltons of DOM from seawater collected at three depths in the North Pacific Ocean, and polysaccharides appear to be more abundant and reactive components of seawater DOM than has been recognized.
BookDOI
Trace Metals in Sea Water
TL;DR: In this article, the results of a study conducted by the International Council for the Exploration of the Sea (ICOW) have been used for the measurement of trace metals in sea water.
Journal ArticleDOI
Arctic marine ecosystem contamination
TL;DR: Concentrations of most PCBs and OC pesticides in ringed seal and polar bear populations in the Canadian Arctic are quite similar indicating a uniform geographic distribution of contamination, although alpha-HCH showed a distinct latitudinal gradient in bears due to higher levels in zones influenced by continental runoff.
Journal ArticleDOI
A reassessment of the Eurasian river input of water, sediment, major elements, and nutrients to the Arctic Ocean
Book
Geochemistry of organic matter in the ocean
TL;DR: In this paper, the authors studied the distribution of organic carbon in the Ocean and found that organic carbon is a major source of organic matter in the ocean. But they did not specify the sources of the organic carbon.