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Diurnal variations in personal care products in seawater and mussels at three Mediterranean coastal sites

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Abstract

The presence of personal care products (PCPs) in the marine environment is of major concern. PCPs, UV filters, and musks can enter the marine environment indirectly through wastewater or directly via recreational activities. We conducted this study to document patterns in the occurrence of seven PCPs at three coastal sites impacted by recreational activities during 1 day. The study focused on diurnal variations in these seven PCPs in seawater and indigenous mussels. In seawater, UV filters showed diurnal variations that mirrored variations in recreational activities at the sites. Ethylhexyl methoxycinnamate (EHMC) and octocrylene (OC) water concentrations increased from under the limit of quantification in the morning to 106 and 369 ng/L, respectively, when recreational activities were the highest. In mussels, diurnal variations in OC were observed, with the lowest concentrations recorded in the morning and then increasing throughout the day. As Mytilus spp. are widely used as sentinels in coastal pollution monitoring programs (mussel watch), our findings on diurnal variations could enhance sampling recommendations for recreational sites impacted by PCPs.

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Acknowledgements

The authors thank the HydroSciences Montpellier team, especially Lauren Arpin Pont, Frederique Courant, Rosita Ngangoula, Sébastien Vacher and Abdel Znidah, for their assistance in mussel and seawater sampling.

Funding

This research benefited from the support of the Veolia-Hydrosciences Chair: Risk analysis related to emerging contaminants in water bodies.

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Correspondence to Elena Gomez.

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Responsible editor: Philippe Garrigues

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Picot-Groz, M., Fenet, H., Martinez Bueno, M.J. et al. Diurnal variations in personal care products in seawater and mussels at three Mediterranean coastal sites. Environ Sci Pollut Res 25, 9051–9059 (2018). https://doi.org/10.1007/s11356-017-1100-1

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  • DOI: https://doi.org/10.1007/s11356-017-1100-1

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