Journal ArticleDOI
Mercury Stable Isotope Signatures of World Coal Deposits and Historical Coal Combustion Emissions
Ruoyu Sun,Jeroen E. Sonke,Lars-Eric Heimbürger,Harvey E. Belkin,Guijian Liu,Debasish Shome,Ewa Cukrowska,Catherine Liousse,Oleg S. Pokrovsky,Oleg S. Pokrovsky,David G. Streets +10 more
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TLDR
A comprehensive world coal Hg stable isotope database including 108 new coal samples from major coal-producing deposits in South Africa, China, Europe, India, Indonesia, Mongolia, former USSR, and the U.S. is presented.Abstract:
Mercury (Hg) emissions from coal combustion contribute approximately half of anthropogenic Hg emissions to the atmosphere. With the implementation of the first legally binding UNEP treaty aimed at reducing anthropogenic Hg emissions, the identification and traceability of Hg emissions from different countries/regions are critically important. Here, we present a comprehensive world coal Hg stable isotope database including 108 new coal samples from major coal-producing deposits in South Africa, China, Europe, India, Indonesia, Mongolia, former USSR, and the U.S. A 4.7‰ range in δ202Hg (−3.9 to 0.8‰) and a 1‰ range in Δ199Hg (−0.6 to 0.4‰) are observed. Fourteen (p < 0.05) to 17 (p < 0.1) of the 28 pairwise comparisons between eight global regions are statistically distinguishable on the basis of δ202Hg, Δ199Hg or both, highlighting the potential application of Hg isotope signatures to coal Hg emissions tracing. A revised coal combustion Hg isotope fractionation model is presented, and suggests that gaseous...read more
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Mercury deposition and re-emission pathways in boreal forest soils investigated with Hg isotope signatures.
Martin Jiskra,Jan G. Wiederhold,Ulf Skyllberg,Rose-Marie Kronberg,Irka Hajdas,Ruben Kretzschmar +5 more
TL;DR: The data suggest that Histosols (peat soils), which exhibit at least seasonally water-saturated conditions, have re-emitted up to one-third of previously deposited Hg back to the atmosphere, further supporting the need for a process-based assessment of land/atmosphere Hg exchange.
Journal ArticleDOI
A critical review of mercury speciation, bioavailability, toxicity and detoxification in soil-plant environment: ecotoxicology and health risk assessment
Natasha,Muhammad Shahid,Sana Khalid,Irshad Bibi,Jochen Bundschuh,Nabeel Khan Niazi,Nabeel Khan Niazi,Camille Dumat +7 more
TL;DR: A plausible link among Hg levels, its chemical speciation and phytoavailability in soil, accumulation in plants, phytotoxicity and detoxification of Hg inside the plant is traced and well summarized and up-to-date data are described.
Journal ArticleDOI
Mercury isotope compositions across North American forests
TL;DR: In this article, stable isotope compositions of Hg in foliage, litter, and mineral soil horizons across 10 forest sites in the contiguous United States were systematically characterized, showing that the mass independent isotope signatures in all forest depth profiles are more consistent with those of atmospheric Hg(0) than those of atmosphere Hg (II), indicating that atmospheric hg(II) is the larger source of hg to forest ecosystems.
Journal ArticleDOI
Recent Developments in Mercury Stable Isotope Analysis
Joel D. Blum,Marcus W. Johnson +1 more
TL;DR: A review of the literature on stable isotope geochemistry of non-traditional stable isotopes can be found in this article, with a focus on the field of mercury (Hg) geochemistry.
Journal ArticleDOI
The use of Pb, Sr, and Hg isotopes in Great Lakes precipitation as a tool for pollution source attribution
TL;DR: These data represent the first combined characterization of Pb, Sr, and Hg isotope ratios in precipitation collected across the Great Lakes region and demonstrate the utility of multiple metal isotopes ratios in parallel with traditional trace element multivariate statistical modeling to enable more complete pollution source attribution.
References
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Journal ArticleDOI
Global mercury emissions to the atmosphere from anthropogenic and natural sources
Nicola Pirrone,Sergio Cinnirella,Xinbin Feng,R. B. Finkelman,Hans R. Friedli,Joy J. Leaner,Robert P. Mason,Arun B. Mukherjee,Glenn B. Stracher,David G. Streets,Kevin Telmer +10 more
TL;DR: In this paper, the authors provided an up-to-date assessment of global mercury emissions from anthropogenic and natural sources, including re-emission processes and primary emissions from natural reservoirs.
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.
Journal ArticleDOI
Global emission of mercury to the atmosphere from anthropogenic sources in 2005 and projections to 2020
Elisabeth G. Pacyna,Jozef M. Pacyna,Kyrre Sundseth,John Munthe,Karin Kindbom,Simon Wilson,Frits Steenhuisen,P. Maxson +7 more
TL;DR: In this article, the authors present the 2005 global inventory of anthropogenic emissions to the atmosphere component of the work that was prepared by UNEP and AMAP as a contribution to the UNEP report Global Atmospheric Mercury Assessment: Sources, Emissions and Transport (UNEP Chemicals Branch, 2008 ).
Journal ArticleDOI
Status review of mercury control options for coal-fired power plants
John H. Pavlish,Everett A. Sondreal,Michael Mann,Edwin S. Olson,Kevin C. Galbreath,Dennis L. Laudal,Steven A. Benson +6 more
TL;DR: In this article, the authors present an overview of research related to mercury control technology for coal-fired power plants and identify areas requiring additional research and development, including the chemistry of mercury transformation and control; progress in the development of promising control technologies: sorbent injection, control in wet scrubbers, and coal cleaning; and projects costs for mercury control.
Journal ArticleDOI
Geochemistry of trace elements in Chinese coals: A review of abundances, genetic types, impacts on human health, and industrial utilization
TL;DR: The background values of trace elements were dominated by sediment source regions in coal-bearing strata in China as mentioned in this paper, and the genetic types for trace-element enrichment of Chinese coals include source-rock- controlled, marine-environment-controlled, hydrothermal-fluid-controlled (including magmatic-, low-temperature-hydrothermalfluid-, and submarine-exhalation-controlled subtypes), groundwater-controlled and volcanic-ash-controlled.