Eutrophication and arsenic speciation in lake waters

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Show simple item record Hasegawa, H Rahman, MA Rahman, IM
dc.contributor.editor Webber, CD 2012-02-14T04:23:38Z 2010-01
dc.identifier.citation Eutrophication: Ecological Effects, Sources, Prevention and Reversal, 2010, 1, pp. 187 - 195
dc.identifier.isbn 978-1-61728-911-8
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.
dc.publisher Nova Science
dc.relation.hasversion Accepted manuscript version en_US
dc.title Eutrophication and arsenic speciation in lake waters
dc.type Chapter
dc.parent Eutrophication: Ecological Effects, Sources, Prevention and Reversal
dc.journal.number en_US
dc.publocation New York, USA en_US
dc.publocation New York, USA
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 0502 Environmental Science and Management
dc.for 039901 Environmental Chemistry (Incl. Atmospheric Chemistry)
dc.personcode 112851
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.edition 1
dc.custom en_US en_US
dc.location.activity en_US
dc.description.keywords NA
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
pubs.organisational-group /University of Technology Sydney/Strength - Environmental Science
utslib.copyright.status Open Access 2015-04-15 12:23:47.074767+10
pubs.consider-herdc false
utslib.collection.history General (ID: 2)
utslib.collection.history School of the Environment (ID: 344)
utslib.collection.history School of the Environment (ID: 344)

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