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Chlorinated and brominated persistent compounds in hard coral, soft coral, and parrotfish from remote Mascarene islands

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VAN DER SCHYFF Veronica DU PREEZ Marinus BLOM Karin YIVE Nee Sun Choong Kwet KLÁNOVÁ Jana PŘIBYLOVÁ Petra AUDY Ondřej MARTINÍK Jakub BOUWMAN Hindrik

Rok publikování 2021
Druh Článek v odborném periodiku
Časopis / Zdroj Chemosphere
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
www https://www.sciencedirect.com/science/article/pii/S004565352033513X?via%3Dihub
Doi http://dx.doi.org/10.1016/j.chemosphere.2020.129316
Klíčová slova Bioaccumulation; Coral reefs; Emerging contaminants; Mascarene basin; Western Indian ocean
Popis Persistent halogenated compounds (PHC) are of concern for human and environmental health. Persistent Organic Pollutants (POPs) are regulated by international treaties, but alternative compounds such as novel brominated flame retardants (NBERs) and Dechlorane Plus (DP) are not-yet they are increasingly used. There are no data on PHCs in coral reef biota from tropical islands in the western Indian Ocean (WIO). For this assessment, three hard coral genera, two soft coral genera, and ember parrotfish (Scarus rubroviolaceus) were collected from the remote Rodrigues, Agalega, and St. Brandon's Atoll (Republic of Mauritius) in the Mascarene Basin of the WIO. Five compounds - Pentabromotoluene (PBT), gamma-HCH, p,p'-DDE, HCB, and BDE-47- were quantifiable in all samples. Hard coral consistently contained the lowest concentrations of PHCs, except for NBERs. The presence of BDE-47 suggests long-range aerial transport. We quantified DP, currently a candidate POP, in coral reef biota. PBT was measured in all samples also suggests long-range transport. Because the hard coral, soft coral, and fish had differing concentrations and patterns of PHCs, future surveys should stratify sampling accordingly. Agalega and St. Brandon's Atoll can be considered as locations to monitor changes in background concentrations of pollutants due to their remoteness.
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