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Partitioning of organochlorine pesticides from water to polyethylene passive samplers

Lookup NU author(s): Professor David WernerORCiD

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Abstract

The mass transfer rates and equilibrium partitioning behaviour of 14 diverse organochlorine pesticides (OCP) between water and polyethylene (PE) passive samplers, cut from custom made PE sheets and commercial polyethylene plastic bags, were quantified. Overall mass transfer coefficients, k(O), estimated PE membrane diffusion coefficients, D-PE, and PE-water partitioning coefficients, KPE-water, are reported. In addition, the partitioning of three polycyclic aromatic hydrocarbons (PAHs) from water to PE is quantified and compared with literature values. KPE-water values agreed mostly within a factor of two for both passive samplers and also with literature values for the reference PAHs. As PE is expected to exhibit similar sorption behaviour to long-chain alkanes, PE-water partitioning coefficients were compared to hexadecane-water partitioning coefficients estimated with the SPARC online calculator, COSMOtherm and a polyparameter linear free energy relationship based on the Abraham approach. The best correlation for all compounds tested was with COSMOtherm estimated hexadecane-water partitioning coefficients. (C) 2010 Elsevier Ltd. All rights reserved.

Publication metadata

Author(s): Hale SE, Martin TJ, Goss KU, Arp HPH, Werner D

Publication type: Article

Publication status: Published

Journal: Environmental Pollution

Year: 2010

Volume: 158

Issue: 7

Pages: 2511-2517

Print publication date: 15/04/2010

ISSN (print): 0269-7491

ISSN (electronic): 1873-6424

Publisher: Pergamon

URL: http://dx.doi.org/10.1016/j.envpol.2010.03.010

DOI: 10.1016/j.envpol.2010.03.010

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