About: Geochemical distribution and mobility of heavy metals in sediments of urban streams affected by combined sewer overflows

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Study was undertaken to assess the impact of combined sewer overflows (CSOs) on distribution and mobility of heavy metals in sediments of streams in Prague, Czech Republic. Contents of total and extractable heavy metals (Cu, Zn, Pb, Cd, Cr and Ni), mineralogical phases and other sediment properties were measured in 44 surficial sediment samples. The observed mobility order of metals was Cd > Zn > Ni > Cu > Pb > Cr. There was a considerable increase in Zn mobility and increase of Cu associated with the oxidisable fraction in the sediments below CSO discharges. Cd was revealed as the most mobile heavy metal with percentages of extraction of approximately 40–60% in acid soluble fraction. Pb was mainly found in reducible fraction associated with Fe/Mn (oxi)hydroxides. In terms of environmental significance, Cd and Zn can be particularly mobile and bioavailable under acidic conditions, because they are predominantly bound in labile fractions. Study was undertaken to assess the impact of combined sewer overflows (CSOs) on distribution and mobility of heavy metals in sediments of streams in Prague, Czech Republic. Contents of total and extractable heavy metals (Cu, Zn, Pb, Cd, Cr and Ni), mineralogical phases and other sediment properties were measured in 44 surficial sediment samples. The observed mobility order of metals was Cd > Zn > Ni > Cu > Pb > Cr. There was a considerable increase in Zn mobility and increase of Cu associated with the oxidisable fraction in the sediments below CSO discharges. Cd was revealed as the most mobile heavy metal with percentages of extraction of approximately 40–60% in acid soluble fraction. Pb was mainly found in reducible fraction associated with Fe/Mn (oxi)hydroxides. In terms of environmental significance, Cd and Zn can be particularly mobile and bioavailable under acidic conditions, because they are predominantly bound in labile fractions. (en)
Title	Geochemical distribution and mobility of heavy metals in sediments of urban streams affected by combined sewer overflows Geochemical distribution and mobility of heavy metals in sediments of urban streams affected by combined sewer overflows (en)
skos:prefLabel	Geochemical distribution and mobility of heavy metals in sediments of urban streams affected by combined sewer overflows Geochemical distribution and mobility of heavy metals in sediments of urban streams affected by combined sewer overflows (en)
skos:notation	RIV/67985874:_____/11:00360299!RIV12-AV0-67985874
http://linked.open...avai/predkladatel	Ústav pro hydrodynamiku AV ČR, v. v. i.
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(IAA200600902), Z(AV0Z20600510)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Hnaťuková, Petra
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav pro hydrodynamiku AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	201067
http://linked.open...ai/riv/idVysledku	RIV/67985874:_____/11:00360299
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	sediments; heavy metals; urban streams; sequential extraction; combined sewer overflows (en)
http://linked.open.../riv/klicoveSlovo	sequential extraction combined sewer overflows urban streams sediments heavy metals
http://linked.open...odStatuVydavatele	SK - Slovenská republika
http://linked.open...ontrolniKodProRIV	[0F1EF6CFF33D]
http://linked.open...i/riv/nazevZdroje	Journal of Hydrology and Hydromechanics
http://linked.open...in/vavai/riv/obor	BK
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...vavai/riv/projekt	Removal of organic matter produced by fytoplankton (AOM) and their influence on destabilisation and aggregation processes during water purification
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	59
http://linked.open...iv/tvurceVysledku	Hnaťuková, Petra
http://linked.open...ain/vavai/riv/wos	000294700300002
http://linked.open...n/vavai/riv/zamer	Dynamics of Fluid Systems and Transformation Processes in Hydrosphere
issn	0042-790X
number of pages	10 (xsd:int)
http://bibframe.org/vocab/doi	10.2478/v10098-011-0007-7
is http://linked.open...avai/riv/vysledek of	Geochemical distribution and mobility of heavy metals in sediments of urban streams affected by combined sewer overflows Geochemical distribution and mobility of heavy metals in sediments of urban streams affected by combined sewer overflows

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