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Statements

Subject Item
n2:RIV%2F00025798%3A_____%2F11%3A00000567%21RIV12-MZP-00025798
rdf:type
n10:Vysledek skos:Concept
dcterms:description
Topsoils in the vicinity of the Nkana copper smelter were studied in order to assess the spatial distribution of metal/metalloid contaminants (As, Co, Cu, Pb, Zn) around the smelter. The bulk concentrations of metal/metalloid contaminants were determined by ICP techniques, supplemented by the determination of the Pb isotopic composition of selected samples measured by quadrupole-based ICP-MS. The spatial distribution of the major contaminants indicated the highest contamination NW of the smelter stack, corresponding to the prevailing wind direction in the area. Lead isotopes helped to differentiate the extent of metallic pollution and indicated the mixing of three major pollution sources: smelting activities, petrol combustion and regional background. To assess the vertical mobility of inorganic contaminants, a 110-cm-deep profile in Oxisol in a highly polluted zone in the near vicinity of the Nkana smelter was sampled and studied by combination of bulk chemical analysis, sequential extraction procedure (SEP) and Pb isotopic tracing. The contamination was mostly located in the uppermost soil horizons enriched in organic matter. Based on SEP, the isotopic composition and knowledge of smelter activities in the area, it was predicted that anthropogenic Pb exhibited downward migration in the soil profile with estimated penetration rate of 1.36 cm year(-1). Copper, being substantially bound in the exchangeable fraction, also showed significant mobility in the profile. As a result, the sources of anthropogenic emissions in the Kitwe smelting area represent an important source of mobile (and potentially bioavailable) metals. Topsoils in the vicinity of the Nkana copper smelter were studied in order to assess the spatial distribution of metal/metalloid contaminants (As, Co, Cu, Pb, Zn) around the smelter. The bulk concentrations of metal/metalloid contaminants were determined by ICP techniques, supplemented by the determination of the Pb isotopic composition of selected samples measured by quadrupole-based ICP-MS. The spatial distribution of the major contaminants indicated the highest contamination NW of the smelter stack, corresponding to the prevailing wind direction in the area. Lead isotopes helped to differentiate the extent of metallic pollution and indicated the mixing of three major pollution sources: smelting activities, petrol combustion and regional background. To assess the vertical mobility of inorganic contaminants, a 110-cm-deep profile in Oxisol in a highly polluted zone in the near vicinity of the Nkana smelter was sampled and studied by combination of bulk chemical analysis, sequential extraction procedure (SEP) and Pb isotopic tracing. The contamination was mostly located in the uppermost soil horizons enriched in organic matter. Based on SEP, the isotopic composition and knowledge of smelter activities in the area, it was predicted that anthropogenic Pb exhibited downward migration in the soil profile with estimated penetration rate of 1.36 cm year(-1). Copper, being substantially bound in the exchangeable fraction, also showed significant mobility in the profile. As a result, the sources of anthropogenic emissions in the Kitwe smelting area represent an important source of mobile (and potentially bioavailable) metals.
dcterms:title
Tracing the spatial distribution and mobility of metal/metalloid contaminants in Oxisols in the vicinity of the Nkana copper smelter, Copperbelt province, Zambia Tracing the spatial distribution and mobility of metal/metalloid contaminants in Oxisols in the vicinity of the Nkana copper smelter, Copperbelt province, Zambia
skos:prefLabel
Tracing the spatial distribution and mobility of metal/metalloid contaminants in Oxisols in the vicinity of the Nkana copper smelter, Copperbelt province, Zambia Tracing the spatial distribution and mobility of metal/metalloid contaminants in Oxisols in the vicinity of the Nkana copper smelter, Copperbelt province, Zambia
skos:notation
RIV/00025798:_____/11:00000567!RIV12-MZP-00025798
n10:predkladatel
n11:ico%3A00025798
n3:aktivita
n16:Z n16:I n16:S n16:P
n3:aktivity
I, P(GA205/08/0321), S, Z(MSM0021620855), Z(MZP0002579801)
n3:cisloPeriodika
1-2
n3:dodaniDat
n15:2012
n3:domaciTvurceVysledku
n5:2223139 n5:9365761
n3:druhVysledku
n18:J
n3:duvernostUdaju
n13:S
n3:entitaPredkladatele
n14:predkladatel
n3:idSjednocenehoVysledku
235681
n3:idVysledku
RIV/00025798:_____/11:00000567
n3:jazykVysledku
n19:eng
n3:klicovaSlova
mediterranean soils, lead-isotope, pollution, metals, mechanisms, extraction, speciation, migration, profiles
n3:klicoveSlovo
n7:mechanisms n7:extraction n7:migration n7:speciation n7:metals n7:pollution n7:profiles n7:lead-isotope n7:mediterranean%20soils
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[615CE258D556]
n3:nazevZdroje
Geoderma
n3:obor
n17:DD
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
5
n3:projekt
n12:GA205%2F08%2F0321
n3:rokUplatneniVysledku
n15:2011
n3:svazekPeriodika
164
n3:tvurceVysledku
Mihaljevič, Martin Kříbek, Bohdan Šebek, Ondřej Majer, Vladimír Ettler, Vojtěch
n3:zamer
n4:MZP0002579801 n4:MSM0021620855
s:issn
0016-7061
s:numberOfPages
13