Abstract：
:In recent years, organic ultraviolet filters (UVFs) received considerable attention as a group of emerging contaminants, including in Australia where the use of UVFs is particularly relevant. Passive sampling using polymers has become widely used for routine monitoring of chemicals in the aquatic environment. Application of passive samplers for monitoring chemicals in the water relies on calibration data such as chemical's polymer-water partition coefficient (Kpw) and diffusion coefficients in the sampling material (Dp), for understanding uptake and kinetic limitations. In the present study, Kpw and Dp for nine UVFs were estimated. Kpw values were determined in different water - polymer partition experiments where (1) a given mass of chemicals was dosed into the water and (2) into the polymer. Diffusion coefficients were determined using the stacking method. The estimated log Kpw and log Dp ranged from 2.9 to 6.4 L kg-1 and -11.1 to -10.5 m2s-1, respectively. The sufficient high Dp allows application of kinetic models that only consider water boundary-controlled uptake for converting silicone sampler uptake into an aqueous phase concentration using the presented Kpw.
journal_name
Chemospherejournal_title
Chemosphereauthors
Verhagen R,O'Malley E,Smedes F,Mueller JF,Kaserzon Sdoi
10.1016/j.chemosphere.2019.02.077subject
Has Abstractpub_date
2019-05-01 00:00:00pages
731-737eissn
0045-6535issn
1879-1298pii
S0045-6535(19)30299-1journal_volume
223pub_type
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