Geochemical background in polluted river sediments: How to separate the effects of sediment provenance and grain size with statistical rigour?

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F15%3A33157344" target="_blank" >RIV/61989592:15310/15:33157344 - isvavai.cz</a>
Alternative codes found
RIV/61388980:_____/15:00450236
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S0341816215300588" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0341816215300588</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.catena.2015.07.003" target="_blank" >10.1016/j.catena.2015.07.003</a>

Result language
angličtina
Original language name
Geochemical background in polluted river sediments: How to separate the effects of sediment provenance and grain size with statistical rigour?
Original language description
Defining anomalies from geochemical background is a principal step in anthropogenic contamination studies and environmental risk assessment, and yet the complexity of processes affecting the composition of sediments makes this task extremely difficult. We address grain size and sediment provenance as two parameters influencing the geochemistry of contaminated fluvial sediments. We analysed 576 sediment samples from channels, floodplains, oxbow lakes, and dam reservoirs of the Morava River, Czech Republic. The geochemical data are compared with grain size and statistically processed using primary observations and log-ratios. An effective way to remove the grain size and provenance effect is to use enrichment factors calculated from least trimmed squaresregression of Pb, Zn, Cu and Cr data vs. normalizing Ti, which is sensitive to grain size. Based on empirical testing, titanium proved more suitable for normalizing than did Al and Rb. Isometric log-ratio coordinates of the Pb, Zn, Cu an
Czech name
—
Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DD - Geochemistry
OECD FORD branch
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Project
<a href="/en/project/GAP210%2F12%2F0573" target="_blank" >GAP210/12/0573: Late Quaternary seismogenic faulting and evolution of fault-controlled sedimentary basins in the eastern Bohemian Massif</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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