Silicone rubber sheeting can be used as a passive sampling device for hydrophobic organic contaminants in the environment to determine the available concentrations in water and sediments. Reliable sampler-water partition coefficients are required to 12 determine the sampling rates and the dissolved contaminant concentrations in water and in sediment pore water. Log partition coefficients (log w sr K , ) for silicone rubber-water 14 have been estimated for 32 polycyclic aromatic hydrocarbons (PAHs), 2 deuterated PAH 15 analogues and 32 chlorobiphenyls (CBs) using the cosolvent method, with methanol as 16 cosolvent. Strong linear relationships were found with literature values for the 17 corresponding log octanol-water partition coefficients (log ow K ) for both CBs and PAHs, confirming that partitioning into the silicone rubber is strongly determined by the hydrophobicity of the compounds, which suggests log ow K is a good predictor of log w sr K , and that absorption is the main mechanism for accumulation of analytes into the silicone rubber polymer.

Understanding marine food web dynamics using fatty acid signatures and stable isotope ratios: Improving contaminant impacts assessments across trophic levels. Estuarine, Coastal and Shelf Science, [106327].

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