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

Abstract：

: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 (NBFRs) 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), γ-HCH, p,p'-DDE, HCB, and BDE-47- were quantifiable in all samples. Hard coral consistently contained the lowest concentrations of PHCs, except for NBFRs. 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.

journal_name

Chemosphere

journal_title

Chemosphere

authors

van der Schyff V,du Preez M,Blom K,Kwet Yive NSC,Klánová J,Přibylová P,Audy O,Martiník J,Bouwman H

doi

10.1016/j.chemosphere.2020.129316

subject

Has Abstract

pub_date

2021-03-01 00:00:00

pages

129316

eissn

0045-6535

issn

1879-1298

pii

S0045-6535(20)33513-X

journal_volume

267

pub_type

杂志文章

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