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Mercury in mires
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
2006 (English)In: Peatlands: Evolution and Records of Environmental and Climate Changes / [ed] Mike J. Smith, Paolo Paron and James S. Griffiths, Elsevier, 2006, 465-478 p.Chapter in book (Refereed)
Abstract [en]

This chapter illustrates that a better understanding of the behavior of mercury in the environment is needed for a number of reasons. For example, increased biomagnification of mercury in aquatic food chains, especially in fish, and enhanced accumulation in remote areas such as the Arctic have been observed in the last few decades. Mercury toxicity in aquatic ecosystems is of particular concern, with the role of methylmercury (MeHg) being critical. This compound can be concentrated by more than a million times in the aquatic food chain. Biogeochemical studies and monitoring programs that include direct measurements of wet deposition or indirect measurements based on biomonitoring of forest mosses, have established that anthropogenic activities have affected the global cycling of mercury. Although a precise link has yet to be made between the increased content of mercury in biota and the increased accumulation rates observed in natural environmental archives, such as peat, lake sediments, and glacial ice, there is broad consensus that these archives provide a means to reconstruct atmospheric deposition trends at local, regional, and global scales.

Place, publisher, year, edition, pages
Elsevier, 2006. 465-478 p.
, Developments in Earth Surface Processes, ISSN 0928-2025 ; 9
National Category
Environmental Sciences Ecology
URN: urn:nbn:se:umu:diva-76488DOI: 10.1016/S0928-2025(06)09020-1ISI: 000310532200022ISBN: 978-0-08-046805-1ISBN: 978-0-444-52883-4OAI: diva2:636620
Available from: 2013-07-10 Created: 2013-07-09 Last updated: 2013-07-11Bibliographically approved

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Bindler, Richard
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