Journal ArticleDOI
A Synthesis of Progress and Uncertainties in Attributing the Sources of Mercury in Deposition
Steve E. Lindberg,Russell Bullock,Ralf Ebinghaus,Daniel R. Engstrom,Xinbin Feng,William F. Fitzgerald,Nicola Pirrone,Eric M. Prestbo,Christian Seigneur +8 more
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TLDR
It is agreed that the uncertainty is strongly dependent upon scale and that the question as stated is answerable with greater confidence both very near and very far from major point sources, assuming that the “global pool” is a recognizable “source.”Abstract:
A panel of international experts was convened in Madison, Wisconsin, in 2005, as part of the 8th International Conference on Mercury as a Global Pollutant. Our charge was to address the state of science pertinent to source attribution, specifically our key question was: "For a given location, can we ascertain with confidence the relative contributions of local, regional, and global sources, and of natural versus anthropogenic emissions to mercury deposition?" The panel synthesized new research pertinent to this question published over the past decade, with emphasis on four major research topics: long-term anthropogenic change, current emission and deposition trends, chemical transformations and cycling, and modeling and uncertainty. Within each topic, the panel drew a series of conclusions, which are presented in this paper. These conclusions led us to concur that the answer to our question is a "qualified yes," with the qualification being dependent upon the level of uncertainty one is willing to accept. We agreed that the uncertainty is strongly dependent upon scale and that our question as stated is answerable with greater confidence both very near and very far from major point sources, assuming that the "global pool" is a recognizable "source." Many regions of interest from an ecosystem-exposure standpoint lie in between, where source attribution carries the greatest degree of uncertainty.read more
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Journal ArticleDOI
Functionalized Gold Nanoparticles as an Active Layer for Mercury Vapor Detection at Room Temperature
Ilaria Fratoddi,Sara Cerra,Tommaso A. Salamone,Raoul Fioravanti,Fabio Sciubba,Emiliano Zampetti,Antonella Macagnano,Amanda Generosi,Barbara Paci,Francesca A. Scaramuzzo,Roberto Matassa,Giuseppe Familiari,Chiara Battocchio,Martina Marsotto,Paolo Papa,Andrea Bearzotti +15 more
TL;DR: Nanomaterials such as gold nanoparticles employed as solid-state sensors have attracted attention in recent years due to their ability to detect poisonous elements in the indoor/outdoor environment.
Journal ArticleDOI
A Chemical Transport Model Emulator for the Interactive Evaluation of Mercury Emission Reduction Scenarios
Francesco De Simone,Francesco D'Amore,Francesco Marasco,Francesco Carbone,Mariantonia Bencardino,Ian M. Hedgecock,Sergio Cinnirella,Francesca Sprovieri,Nicola Pirrone +8 more
TL;DR: HerMES provides the scientific soundness of a full CTM numerical framework in an interactive and user-friendly spreadsheet, without the necessity for specific training or formation, and is a first step towards a more comprehensive, and integrated, decision support system to aid decision-makers in the implementation of the Minamata Convention.
Journal ArticleDOI
Trace metals as markers for historical anthropogenic contamination: Evidence from the Peshawar Basin, Pakistan.
TL;DR: The Peshawar Basin anthropogenic signals contribute to widespread European early Anthropocene signals at around 2000 BP related to the Greek and Roman mining and smelting peak signals observed in Europe and China and correlate to the suggested base of a formalised Anthropocene.
Journal ArticleDOI
Colloidal mercury (Hg) distribution in soil samples by sedimentation field-flow fractionation coupled to mercury cold vapour generation atomic absorption spectroscopy
TL;DR: Investigation of mercury in soil samples collected from a polluted industrial site was performed by using a new analytical approach which makes use of sedimentation field-flow fractionation (SdFFF) coupled to cold vapour generation electrothermal atomic absorption spectroscopy (CV-ETAAS).
References
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Journal ArticleDOI
The biogeochemical cycling of elemental mercury: Anthropogenic influences☆
TL;DR: A review of the available information on global Hg cycling shows that the atmosphere and surface ocean are in rapid equilibrium; the evasion of Hg0 from the oceans is balanced by the total oceanic deposition of hg(II) from the atmosphere as mentioned in this paper.
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The Case for Atmospheric Mercury Contamination in Remote Areas
TL;DR: A review of the weaknesses in interpretation and the choice of information that has been used to argue against atmospheric Hg contamination can be found in this paper, where the authors examine the weaknesses of the information used to support the prevailing scientific view that natural geologic sources are the principal contributors of Hg.
Journal ArticleDOI
Global anthropogenic mercury emission inventory for 2000
TL;DR: Wilson et al. as mentioned in this paper presented a new inventory of global emissions of mercury to the atmosphere from anthropogenic sources for the year 2000, showing that the largest emissions of Hg to the global atmosphere occur from combustion of fossil fuels, mainly coal in utility, industrial, and residential boilers.
Journal ArticleDOI
Arctic springtime depletion of mercury
W.H. Schroeder,Kurt G. Anlauf,Leonard A. Barrie,J. Y. Lu,Alexandra Steffen,D. Schneeberger,Torunn Berg +6 more
TL;DR: In this paper, the authors show that during the spring (April to early June) of 1995, there were frequent episodic depletions in mercury vapour concentrations in Arctic surface air.