title: Heavy metals mobility associated with the molybdenum mining-concentration complex in the Buryatia Republic, Germany.
abstract: Mining of Dzhida ore deposits in Russia has caused the formation of a large tailings dam with technogenic sands and contamination of nearby district soils. Geochemical fractions of technogenic sands were divided by a sequential extraction procedure. The sampling points with maximum concentration of Pb, Cu, and Zn were selected for investigation of heavy metal mobility. Two previously described methods of heavy metal fractionation using selective extraction were applied: a procedure developed by the Community Bureau of Reference of the Commission of the European Communities (BCR procedure) and Tessier's fractionation scheme. Despite some differences in Pb extractions, the two procedures describe equally well the distribution of heavy metals on geochemical fractions. BCR procedure was chosen as a fast method of heavy metal mobile form estimation. For considered mining object, it is revealed that there are different characters of heavy metal mobility sequence in the soils Zn > Cu > Pb and technogenic sands Pb > Zn > Cu.
authors.affiliation: Geological Institute, SB RAS, Sahyanovoy St. 6a, 670047, Ulan-Ude, Russia. sarapulova80@mail.ru.
authors.forename: Angelina
authors.initials: A
authors.lastname: Sarapulova
authors.affiliation: Geological Institute, SB RAS, Sahyanovoy St. 6a, 670047, Ulan-Ude, Russia.
authors.forename: Bayarma V
authors.initials: BV
authors.lastname: Dampilova
authors.affiliation: Geological Institute, SB RAS, Sahyanovoy St. 6a, 670047, Ulan-Ude, Russia.
authors.forename: Irina
authors.initials: I
authors.lastname: Bardamova
authors.affiliation: Geological Institute, SB RAS, Sahyanovoy St. 6a, 670047, Ulan-Ude, Russia.
authors.forename: Svetlana G
authors.initials: SG
authors.lastname: Doroshkevich
authors.affiliation: Geological Institute, SB RAS, Sahyanovoy St. 6a, 670047, Ulan-Ude, Russia.
authors.forename: Olga
authors.initials: O
authors.lastname: Smirnova
mesh_terms: D004784:Environmental Monitoring; D005858:Germany; D019216:Metals, Heavy / Q000032:analysis*; D008906:Mining; D008982:Molybdenum; D012989:Soil Pollutants / Q000032:analysis*
chemical_list: D019216:Metals, Heavy; D012989:Soil Pollutants; D008982:Molybdenum
keywords: Heavy metals mobility; Sequential extraction procedure; Soil pollution