Journal ArticleDOI
Arsenic, antimony, and germanium biogeochemistry in the Baltic Sea
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Arsenic, antimony, and germanium species concentrations have been determined from five hydrographic stations along the central axis of the Baltic Sea from the Bornholm Basin to the Gulf of Finland.Abstract:
Arsenic, antimony, and germanium species concentrations have been determined from fivehydrographic stations along the central axis of the Baltic Sea from the Bornholm Basin to theGulf of Finland. Arsenic and antimony concentrations are lower than in the open oceans and inmost rivers. In the oxic waters, the pentavalent species of As and Sb predominate, while in theanoxic basins, the distribution shifts to the trivalent species and possibly some sulfo-complexes.Methylated arsenic species make up a large fraction of dissolved As in the surface waters, andmethylated species of As, Sb, and Ge are detectable throughout the water column. Germanicacid concentrations are about ten times higher than in the ocean and much higher than can beaccounted for by Ruvial input. The vertical distributions of arsenic, antimony, and germaniumwithin the Baltic Sea are controlled by biogeochemical cycling, involving biogenic uptake,particulate scavenging and partial regeneration. A mass balance including river and atmosphericinputs, exchange with the Atlantic through the Belt Sea, and removal by sediment depositionsuggests that anthropogenic inputs make a significant contribution to the budgets of all threeelements, with atmospheric fluxes dominating the input of Ge to the Baltic. DOI: 10.1111/j.1600-0889.1984.tb00232.xread more
Citations
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Antimony in the environment: a review focused on natural waters: I. Occurrence
TL;DR: Antimony is ubiquitously present in the environment as a result of natural processes and human activities as discussed by the authors and is considered to be priority pollutants interest by the USEPA and the EU.
Journal ArticleDOI
Microbial Methylation of Metalloids: Arsenic, Antimony, and Bismuth
TL;DR: As described in this review, many microorganisms (bacteria, fungi, and yeasts) and animals are now known to biomethylate arsenic, forming both volatile and nonvolatile compounds, including methylarsines and trimethylstibine.
Journal ArticleDOI
Paleoredox variations in ancient oceans recorded by rare earth elements in fossil apatite
TL;DR: In this article, rare earth element concentrations in biogenic apatite of conodonts, fish debris and inarticulate brachiopods were determined in over 200 samples from Cambrian to modern sediments.
Environmental Health Criteria 224 Arsenic and Arsenic Compounds
A. Gomez-Caminero,P. Howe,M. Hughes,E. Kenyon,D.R. Lewis,Michael R. Moore,Jack C. Ng,A. Aitio,G. Becking +8 more
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Antimony in the environment: A review focused on natural waters. III. Microbiota relevant interactions
TL;DR: The interactions of antimony with microbiota are discussed in relation to its fate in natural waters, and the following aspects: occurrence in microbiota, uptake transport mechanisms, pathways of Sb(III) removal from cells involved in antimony tolerance, oxidation and reduction of Antimony by living organisms, phytochelatin induction and biomethylation are covered.
References
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Journal ArticleDOI
Arsenic speciation in seawater and interstitial waters: The influence of biological-chemical interactions on the chemistry of a trace element1
TL;DR: In this paper, four species of arsenic were found in samples of seawater and interstitial water from the northeast Pacific and the continental borderland off southern California: arsenate, arsenite, methylarsonate, and dimethylarsinate.
Journal ArticleDOI
Distribution and speciation of arsenic in natural waters and some marine algae
TL;DR: A positive correlation is evident between the concentrations of arsenite and the methylated arsenicals and indicators of primary productivity, e.g. chlorophyll concentration and 14C-uptake, which indicates that the speciation of arsenic in natural waters is significantly influenced by biological activity.
Journal ArticleDOI
Some aspects of the transfer of atmospheric trace constituents past the air-sea interface
W.G.N. Slinn,L. Hasse,B.B. Hicks,Austin W. Hogan,D. Lal,Peter S. Liss,K.O. Munnich,G.A. Sehmel,O. Vittori +8 more
TL;DR: In this article, a review of known and unknown aspects of wet and dry fluxes of atmospheric trace constituents past the air-sea interface is presented, and a resistance model for dry deposition illustrates that the rate-limiting stage of dry removal can occur in different layers depending on atmospheric and oceanic conditions and on properties of the pollutants.
Journal ArticleDOI
Arseno-sugars from brown kelp ( Ecklonia radiata ) as intermediates in cycling of arsenic in a marine ecosystem
J. S Edmonds,K. A. Francesconi +1 more
TL;DR: Ecklonia is the major organism that concentrates arsenic in the coastal ecosystem to which the western rock lobster and school whiting belong, and it is clear that the compounds described here could readily be further metabolized to arsenobetaine and may well be the source of arsenic in marine fauna associated with the region.
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