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Assessment of the pseudo total metal content in alluvial sediments from Danube River, Serbia

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2011
Authors
Relić, Dubravka
Đorđević, Dragana
Popović, Aleksandar R.
Article (Published version)
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Abstract
We used elemental carbon, nitrogen, hydrogen and sulfur as well as ratios of hydrogen and nitrogen with total organic carbon for investigation of source and conditions of organic matter in alluvial Danube sediments. We also determined the pseudo total concentrations of metals presented as a sum of extracted concentration after five sequential extraction steps. The pseudo total metal concentrations were found to be (mg kg(-1)) for Mn, 666; Fe, 25,852; Mg, 16,193; K, 2,063; Ni, 32.4; Zn, 72.2; Pb, 15.0; Cu, 26.0 and for Cr, 15.9. Correlation analysis and two multivariate analysis methods (principal component and cluster analysis) were helpful in determining the associations between the pseudo total extracted fractions of metals and with elemental carbon, hydrogen, nitrogen, sulfur, total inorganic and organic carbon. These correlations will help us to identify substrates of trace metals in different oxic/anoxic conditions. The correlation results of the trace metals and Fe, K, Mg and Mn ...suggest their adsorption, mainly onto Fe and Mn (hydro)oxides and K alumosilicates, whereas correlations of metals with sulfur indicate that they were precipitated as Fe-sulfides.

Keywords:
Alluvial sediments / Pseudo total metal content / S / Multivariate analysis methods
Source:
Environmental Earth Sciences, 2011, 63, 6, 1303-1317
Publisher:
  • Springer, New York
Projects:
  • The study of physicochemical and biochemical processes in living environment that have impacts on pollution and the investigation of possibilities for minimizing the consequences (RS-172001)

DOI: 10.1007/s12665-010-0802-1

ISSN: 1866-6280

WoS: 000292043100013

Scopus: 2-s2.0-79959593382
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URI
http://cer.ihtm.bg.ac.rs/handle/123456789/786
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