000168723 001__ 168723
000168723 005__ 20181203022430.0
000168723 0247_ $$2doi$$a10.1021/es802544n
000168723 02470 $$2ISI$$a000264108800025
000168723 037__ $$aARTICLE
000168723 245__ $$aTrace Metal Speciation and Bioavailability in Surface Waters of the Black Sea Coastal Area Evaluated by HF-PLM and DGT
000168723 260__ $$c2009
000168723 269__ $$a2009
000168723 336__ $$aJournal Articles
000168723 520__ $$aTrace metal speciation in seawater from the Bulgarian Black Sea coast was studied in situ by hollow fiber permeation liquid membrane (HF-PLM) and by diffusion gradients in thin-film gels (DGT). The concentrations of Cd, Cu, Ni, and Pb determined by HF-PLM were lower than those measured by DGT, in agreement with their analytical windows, e.g., free metal ions provided by the HF-PLM and dynamic (mobile and labile) species by the DGT. The obtained suite of data was further used to evaluate the bioavailability of these metals to the microorganisms, which was then compared with experimental results of metal uptake to green microalga Chlorella salina. Uptake fluxes of the Cd, Cu, Ni, and Pb to C. salina,were predicted from the measured HF-PLM concentrations and laboratory experimentation in artificial seawater, in agreement with theoretical considerations. The HF-PLM and DGT appear to be promising analytical techniques for speciation and bioavailability studies in complex environmental media and allow improved understanding of the role of different chemical species in metal bioavailability (and impact) in seawaters.
000168723 6531_ $$aPermeation Liquid-Membrane
000168723 6531_ $$aIn-Situ Measurements
000168723 6531_ $$aBiotic Ligand Model
000168723 6531_ $$aChemical Speciation
000168723 6531_ $$aNatural-Waters
000168723 6531_ $$aDiffusive Gradients
000168723 6531_ $$aHeavy-Metal
000168723 6531_ $$aThin-Films
000168723 6531_ $$aComplexes
000168723 6531_ $$aSeawater
000168723 700__ $$0240061$$aSlaveykova, Vera$$g165826
000168723 700__ $$aKaradjova, Irina B.
000168723 700__ $$aKaradjov, Metody
000168723 700__ $$aTsalev, Dimiter L.
000168723 773__ $$j43$$q1798-1803$$tEnvironmental Science & Technology
000168723 909C0 $$0252030$$pGR-SLV$$xU11826
000168723 909CO $$ooai:infoscience.tind.io:168723$$particle
000168723 917Z8 $$x173008
000168723 937__ $$aEPFL-ARTICLE-168723
000168723 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000168723 980__ $$aARTICLE