caa a22 4500 467902658 CHVBK 20180406152823.0 cr unu---uuuuu 170328e20060701xx s 000 0 eng 10.1007/s10661-006-0801-6 doi (NATIONALLICENCE)springer-10.1007/s10661-006-0801-6 Effects of Flooding on Lead and Cadmium Speciation in Sediments from a Drinking Water Reservoir [Elektronische Daten] [V. Chrastný, M. Komárek, P. Tlustoš, J. Švehla] Římov water reservoir on the river Malše is the main source of drinking water for the town of České Budějovice and for the majority of inhabitants in the South Bohemian region, Czech Republic. Changes in cadmium and lead contents in bottom sediments before and after an extensive flood on the river Malše in August, 2002 were therefore determined. A five-step sequential extraction procedure was used in order to obtain more detailed information about the influence of the flood on heavy metal retention. In order to determine the mobility of lead and cadmium, the mobility factor (MF) for these heavy metals was calculated. The mobility factor of cadmium showed a significant decrease in the upper parts of the sediment profiles after the flood (e.g., from 59.4% to 49.1%) caused by a release of cadmium especially from the exchangeable fraction. There were no significant changes in the lead mobility factor after the flood, but a decrease of lead concentration in the exchangeable fraction was observed. Presented results show that the flood led to a leaching of the heavy metals present in bottom sediments into the environment. Springer Science + Business Media, Inc., 2006 bottom sediment nationallicence cadmium nationallicence chemical fractionation nationallicence flood nationallicence lead nationallicence sequential extraction nationallicence water reservoir nationallicence Chrastný V. Department of Chemistry, University of South Bohemia, Studentská 13, 370 05, České Budějovice, Czech Republic aut Komárek M. Department of Agrochemistry and Plant Nutrition, Czech University of Agriculture, Kamýcká 129, 165 21, Prague 6, Czech Republic aut Tlustoš P. Department of Agrochemistry and Plant Nutrition, Czech University of Agriculture, Kamýcká 129, 165 21, Prague 6, Czech Republic aut Švehla J. Department of Chemistry, University of South Bohemia, Studentská 13, 370 05, České Budějovice, Czech Republic aut Environmental Monitoring and Assessment Kluwer Academic Publishers 118/1-3(2006-07-01), 113-123 0167-6369 118:1-3<113 2006 118 10661 https://doi.org/10.1007/s10661-006-0801-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10661-006-0801-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chrastný V. Department of Chemistry, University of South Bohemia, Studentská 13, 370 05, České Budějovice, Czech Republic aut NATIONALLICENCE 700 1- Komárek M. Department of Agrochemistry and Plant Nutrition, Czech University of Agriculture, Kamýcká 129, 165 21, Prague 6, Czech Republic aut NATIONALLICENCE 700 1- Tlustoš P. Department of Agrochemistry and Plant Nutrition, Czech University of Agriculture, Kamýcká 129, 165 21, Prague 6, Czech Republic aut NATIONALLICENCE 700 1- Švehla J. Department of Chemistry, University of South Bohemia, Studentská 13, 370 05, České Budějovice, Czech Republic aut NATIONALLICENCE 773 0- Environmental Monitoring and Assessment Kluwer Academic Publishers 118/1-3(2006-07-01), 113-123 0167-6369 118:1-3<113 2006 118 10661 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer