Investigation of cosolvent application to enhance POPs' mass transfer in partitioning passive sampling in sediment

Environmental Science and Pollution Research International
Michaela Belháčová-MinaříkováBranislav Vrana

Abstract

The freely dissolved concentration of persistent organic pollutants (POPs) is one of the most important parameters for risk assessment in aquatic environments, due to its proportionality to the chemical activity. Chemical activity difference represents the driving force for a spontaneous contaminant transport, such as water-aquatic biota or water-sediment. Freely dissolved concentrations in sediment pore water can be estimated from the concentrations in a partition-based passive sampler equilibrated in suspensions of contaminated sediment. Equilibration in the sediment/passive sampler system is slow, since concentrations of most POPs in the water phase, which is the main route for mass transfer, are very low. Adding methanol to sediment in suspension increases the POPs' solubility and, consequently, the permeability in the water phase. The resulting higher aqueous concentrations enhance POPs mass transfer up to three times for investigated POPs (polycyclic aromatic hydrocarbons, polychlorinated biphenyls, organochlorine pesticides) and shorten equilibrium attainment to less than 6 weeks. The addition of methanol to the aqueous phase up to a molar fraction of 0.2 changed the POPs equilibrium distribution ratio between sediment a...Continue Reading

References

Feb 5, 2003·Environmental Science & Technology·Rik KraaijAngelique C Belfroid
May 31, 2003·Environmental Science & Technology·Philipp MayerDonald Mackay
May 18, 2006·Environmental Toxicology and Chemistry·Fredrik Reichenberg, Philipp Mayer
Mar 3, 2007·Chemosphere·Tatsiana P RusinaIvan Holoubek
Oct 17, 2007·Environmental Science & Technology·Philipp MayerStefan Trapp
Aug 13, 2010·Environmental Science & Technology·Kees Booij, Foppe Smedes
Jan 1, 1994·Environmental Science & Technology·A Li, A W Andren
Mar 17, 2012·The Science of the Total Environment·Ian J AllanKristoffer Næs
Jul 7, 2012·Environmental Science and Pollution Research International·Rainer LohmannBranislav Vrana
Sep 1, 2012·Environmental Science & Technology·Varvara Gouliarmou, Philipp Mayer

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