Journal ArticleDOI
Mercury methylation, demethylation and reduction rates in coastal and marine surface waters of the Mediterranean Sea
Mathilde Monperrus,Emmanuel Tessier,David Amouroux,Aude Leynaert,Pierre Huonnic,Olivier F. X. Donard +5 more
Reads0
Chats0
TLDR
In this paper, the relative contribution of photochemical versus biological processes to Hg transformation mechanisms is compared with major biogeochemical parameters (i.e., hydrological and biological data).About:
This article is published in Marine Chemistry.The article was published on 2007-10-01. It has received 239 citations till now. The article focuses on the topics: Photic zone & Bacterioplankton.read more
Citations
More filters
Journal ArticleDOI
Mercury as a Global Pollutant: Sources, Pathways, and Effects
TL;DR: Understanding of sources, atmosphere-land-ocean Hg dynamics and health effects are synthesized, and integration of Hg science with national and international policy efforts is needed to target efforts and evaluate efficacy.
Journal ArticleDOI
Global Biogeochemical Cycling of Mercury: A Review
TL;DR: In this paper, the authors studied uncertainty in the global biogeochemical cycle of mercury, including oxidation processes in the atmosphere, land atmosphere and ocean-atmosphere cycling.
Journal ArticleDOI
Mercury biogeochemical cycling in the ocean and policy implications.
Robert P. Mason,Anna L. Choi,William F. Fitzgerald,Chad R. Hammerschmidt,Carl H. Lamborg,Anne L. Soerensen,Elsie M. Sunderland +6 more
TL;DR: This analysis suggests that while atmospheric deposition is the main source of inorganic Hg to open ocean systems, most of the CH₃Hg accumulating in ocean fish is derived from in situ production within the upper waters (<1000 m), and that the deeper waters of the oceans are responding slowly to changes in atmospheric Hg inputs.
Journal ArticleDOI
Mercury sources, distribution, and bioavailability in the North Pacific Ocean: insights from data and models.
TL;DR: In this article, the authors present methylated (MeHg and dimethylmercury (Me2Hg) and total Hg concentrations from 16 hydrographic stations in the eastern North Pacific Ocean.
Journal ArticleDOI
Global prevalence and distribution of genes and microorganisms involved in mercury methylation.
Mircea Podar,Cynthia C. Gilmour,Craig C. Brandt,Allyson Soren,Steven D. Brown,Bryan R. Crable,Anthony V. Palumbo,Anil C. Somenahally,Anil C. Somenahally,Dwayne A. Elias +9 more
TL;DR: Phylogenetic analysis points to an evolutionary relationship between hgcA and genes encoding corrinoid iron-sulfur proteins functioning in the ancient Wood-Ljungdahl carbon fixation pathway, suggesting that methanogenic Archaea may have been the first to perform these biotransformations.
References
More filters
Journal ArticleDOI
Sulfate stimulation of mercury methylation in freshwater sediments
TL;DR: The relationship between bacterial sulfate reduction and mercury methylation, as well as the in situ distribution of methylmercury in sediments, was studied in Quabbin Reservoir, MA as mentioned in this paper.
Journal ArticleDOI
Bacterial mercury resistance from atoms to ecosystems
TL;DR: How this very mobile and plastic suite of proteins protects host cells from this pervasive toxic metal, what roles it has in the biogeochemical cycling of Hg, and how it has been employed in ameliorating environmental contamination are the subjects of this review.
Journal ArticleDOI
Uptake, Toxicity, and Trophic Transfer of Mercury in a Coastal Diatom
TL;DR: In particular, the authors showed that passive uptake of uncharged, lipophilic chloride complexes is the principal accumulation route of both methylmercury and inorganic mercury in phytoplankton.
Book
Mercury pollution : integration and synthesis
Carl J. Watras,John W. Huckabee +1 more
TL;DR: In this article, the authors present a detailed analysis of the distribution of Mercury in the water and fish of Nan Hu (South Lake), Guangxi Province, China, N. Liang, Z.Q. Xie, and S.S. Bloom.
Journal ArticleDOI
Biogeochemical significance of bacterial biomass in the ocean's euphotic zone
Byung Cheol Cho,Farooq Azam +1 more
TL;DR: Bacterial abundance and biomass were extensively measured in the euphotic zone at several oligotrophic and mesotrophic sites of coastal and open Pacific ocean during different seasons Cornpansons with phytoplankton biomass and l a t h particulate organic carbon (POC) were made in order to determine the quantitative significance of bacteria as a carbon and nitrogen pool as discussed by the authors.
Related Papers (5)
Marine biogeochemical cycling of mercury.
Sulfate-Reducing Bacteria: Principal Methylators of Mercury in Anoxic Estuarine Sediment
G. C. Compeau,Richard Bartha +1 more