Eutrophication and arsenic speciation in lake waters

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Show simple item record Hasegawa, Hiroshi en_US Rahman, Mohammad en_US Rahman, Ismail en_US
dc.contributor.editor Carolann D. Webber en_US 2012-02-14T04:23:38Z 2012-02-14T04:23:38Z 2010 en_US
dc.identifier 2010004996 en_US
dc.identifier.citation Hasegawa Hiroshi, Rahman Mohammad, and Rahman Ismail 2010, 'Eutrophication and arsenic speciation in lake waters', Eutrophication: Ecological Effects, Sources, Prevention and Reversal, Nova Science, New York, USA en_US
dc.identifier.issn 978-1-61728-911-8 en_US
dc.identifier.other B3 en_US
dc.description.abstract Arsenic (As) is widely distributed in aquatic environments in various forms. In natural waters, the dominant inorganoarsenicals (iAs) are incorporated into microorganisms such as phytoplankton, and are converted to methylarsenicals and/or more high order organoarsenicals. In addition, the organoarsenicals are mineralized to iAs and methylarsenicals by bacteria. The cycling of As species would depend on the bioactivity of organisms. Microorganisms, such as phytoplankton and organisms of higher trophic levels, produce methylarsenicals in natural waters with maximum concentrations in summer. The degradation and mineralization of organoarsenic compounds are thought to depend mostly on bacterial activities, which influence the As cycling in aquatic environment. Arsenic metabolism in aquatic organisms results in the occurrence of thermodynamically unstable arsenite and methylarsenic compounds in natural waters. The inorganic forms (As(V) and As(III)) and the methylated forms (methylarsonic acid (CH3AsO(OH)2); MMAA(V) and dimethylarsinic acid ((CH3)2AsO(OH)); DMAA(V)) are the main arsenic species present in natural waters. Although the predominant form of methylarsenicals is consistently DMAA(V) followed by MMAA(V), the existence of trivalent methylarsenic species in the environment has also been reported. en_US
dc.language en_US
dc.publisher Nova Science en_US
dc.relation.hasversion Accepted manuscript version en_US
dc.relation.isbasedon en_US
dc.title Eutrophication and arsenic speciation in lake waters en_US
dc.parent Eutrophication: Ecological Effects, Sources, Prevention and Reversal en_US
dc.journal.volume en_US
dc.journal.number en_US
dc.publocation New York, USA en_US
dc.identifier.startpage 187 en_US
dc.identifier.endpage 195 en_US SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 039901 en_US
dc.personcode 0000070288 en_US
dc.personcode 112851 en_US
dc.personcode 0000070290 en_US
dc.percentage 60 en_US Environmental Chemistry (incl. Atmospheric Chemistry) en_US
dc.classification.type FOR-08 en_US
dc.edition 1 en_US
dc.custom en_US en_US
dc.location.activity en_US
dc.description.keywords NA en_US

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