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Transport of organic contaminants through salinity stratified water masses. A microcosm experiment

AuthorsJover Comas, Eric; Gómez-Gutiérrez, Anna I.; Albaigés Riera, Joan ; Bayona Termens, Josep María
Organochlorine pesticides
Polar pesticides
Flame retardants
Issue DateJan-2007
CitationChemosphere 66(4): 730-737 (2007)
AbstractA salt-wedge stratified microcosm, spiked with 31 target analytes, including PCBs, organochlorine and organophosphorous pesticides, triazines, organophosphate flame retardants and caffeine (an urban wastewater molecular marker), was setup. Compound behaviour was monitored during a four week period, by sampling at six different levels of the water column, in order to understand the transport and loss processes of the different classes of chemical substances. Compound transport from one water body to the other has been positively correlated with diffusion via their molar volume. Target analytes loss has been positively correlated with evaporation via their K(H) and with degradation via their half-lives. From these two processes, evaporation was found to be predominant using a multiparametric regression.
Description8 pages, 3 tables, 4 figures.-- PMID: 16962635 [PubMed].-- Online version available on Sep 14, 2006.
Publisher version (URL)http://dx.doi.org/10.1016/j.chemosphere.2006.07.061
Appears in Collections:(IDAEA) Artículos
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