Polyethylene-Water and Polydimethylsiloxane-Water Partition Coefficients for Polycyclic Aromatic Hydrocarbons and Polychlorinated Biphenyls: Influence of Polymer Source and Proposed Best Available Values.

Content Provider	Europe PMC
Author	Jonker, Michiel T. O.
Abstract	AbstractFor most passive sampling applications, the availability of accurate passive sampler–water partition coefficients (K p‐w) is of key importance. Unfortunately, a huge variability exists in literature K p‐w values, in particular for hydrophobic chemicals such as polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs). This variability is a major source of concern in the passive sampling community, which would benefit from high‐quality K p‐w data. Hence, in the present study “best available” PAH and PCB K p‐w values are proposed for the two most often applied passive sampling materials, that is, low‐density polyethylene and polydimethylsiloxane (PDMS), based on (1) a critical assessment of existing literature data, and (2) new K p‐w determinations for polyethylene and PDMS, with both polymers coming in six different versions (suppliers, thicknesses). The experimental results indicated that K p‐w values for PDMS are independent of the source, thus allowing straightforward standardization. In contrast, K p‐w values for polyethylene from different sources differed by up to 30%. Defining best available K p‐w values for this polymer therefore may require standardization of the polymer source. Application of the proposed best available K p‐w values will substantially improve the accuracy of freely dissolved concentration results by users and the potential for comparisons across laboratories. Environ Toxicol Chem 2022;41:1370–1380. © 2022 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.
Related Links	https://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC9325362&blobtype=pdf
Page Count	11
ISSN	07307268
Journal	Environmental Toxicology and Chemistry [Environ Toxicol Chem]
Volume Number	41
DOI	10.1002/etc.5333
PubMed Central reference number	PMC9325362
Issue Number	6
PubMed reference number	35322897
e-ISSN	15528618
Language	English
Publisher	John Wiley and Sons Inc.
Publisher Date	2022-05-16
Publisher Place	Hoboken
Access Restriction	Open
Rights License	This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made. © 2022 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.
Subject Keyword	Passive sampling Partition coefficients Polethylene Polydimethylsiloxane Polycyclic aromatic hydrocarbons Polychlorinated biphenyls
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Health, Toxicology and Mutagenesis