title: Mobility of toxic elements in carbonate sediments from a mining area in Poland.
abstract: The Bolesław-Bukowno mining area in Poland is highly polluted by elements such as Zn, Pb, Cd and As. The reactivity and mobility of toxic elements such as Tl are poorly known. Here, we studied by sequential extraction the mobility of As, Cd, Co, Cr, Cu, Mn, Mo, Pb, Tl and Zn in sediments from two water reservoirs near Bukowno. Results show that available As, Co, Mn, Pb and Zn are found in carbonate minerals. Available Cd, Cu and Tl are found in sulphides and organic matter. The extractability of As, Cr, Mo and Tl was rather poor. By contrast, 85 % of total Cd, Pb and Zn was mobile. We discuss Tl and Mo association in carbonate sediments from ore deposits.
authors.affiliation: Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland.
authors.forename: Natalia
authors.initials: N
authors.lastname: Ospina-Alvarez
authors.affiliation: Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland.
authors.forename: Lukasz
authors.initials: L
authors.lastname: Głaz
authors.affiliation: Faculty of Biology, University of Warsaw, Żwirki i Wigury 101, 02-097 Warsaw, Poland.
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Dmowski
authors.affiliation: Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland.
authors.forename: Beata
authors.initials: B
authors.lastname: Krasnodębska-Ostręga
keywords: BCR; Mining–tailing area; Molybdenum; Poland; Sequential extraction; Thallium