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dc.contributor.authorHockmann, Kerstin
dc.contributor.authorTandy, Susan
dc.contributor.authorLenz, Markus
dc.contributor.authorReiser, Rene
dc.contributor.authorConesa, Hector
dc.contributor.authorKeller, Martin
dc.contributor.authorStuder, Björn
dc.contributor.authorSchulin, Rainer
dc.date.accessioned2015-09-29T13:52:13Z
dc.date.available2015-09-29T13:52:13Z
dc.date.issued2015-09
dc.identifier.doi10.1016/j.chemosphere.2014.12.020
dc.identifier.urihttp://hdl.handle.net/11654/6239
dc.description.abstractMany soils polluted by antimony (Sb) are subject to fluctuating waterlogging conditions; yet, little is known about how these affect the mobility of this toxic element under field conditions. Here, we compared Sb leaching from a calcareous shooting range soil under drained and waterlogged conditions using four large outdoor lysimeters. After monitoring the leachate samples taken at bi-weekly intervals for >1.5 years under drained conditions, two of the lysimeters were subjected to waterlogging with a water table fluctuating according to natural rainfall water infiltration. Antimony leachate concentrations under drained conditions showed a strong seasonal fluctuation between 110 μg L−1 in summer and <40 μg L−1 in winter, which closely correlated with fluctuations in dissolved organic carbon (DOC) concentrations. With the development of anaerobic conditions upon waterlogging, Sb in leachate decreased to 2–5 μg L−1 Sb and remained stable at this level. Antimony speciation measurements in soil solution indicated that this decrease in Sb(V) concentrations was attributable to the reduction of Sb(V) to Sb(III) and the stronger sorption affinity of the latter to iron (Fe) (hydr)oxide phases. Our results demonstrate the importance of considering seasonal and waterlogging effects in the assessment of the risks from Sb-contaminated sites.
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofChemosphere
dc.accessRightsAnonymous
dc.subjectSb speciation; Redox potential; Microbial reduction; Sb leaching; Transport; Eh
dc.subject.ddc610 - Medizin und Gesundheitde
dc.titleAntimony retention and release from drained and waterlogged shooting range soil under field conditions
dc.type01 - Zeitschriftenartikel, Journalartikel oder Magazin
dc.volume134
dc.audienceScience
fhnw.publicationStatePublished
fhnw.ReviewTypeAnonymous ex ante peer review of a complete publication
fhnw.InventedHereYes
fhnw.PublishedSwitzerlandNo
fhnw.pagination536–543
fhnw.IsStudentsWorkno


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