Metal(loid)s in superficial sediments from coral reefs of French Polynesia

MARINE POLLUTION BULLETIN

卷:155

Article

Besson, Marc¹  Metian, Marc¹  Bustamante, Paco^2,3  Hedouin, Laetitia^4,5 

[1] IAEA, Environm Labs, MC-98000 Principality Of Monaco, Monaco

[2] La Rochelle Univ, Littoral Environm & Soc LIENSs, UMR 7266, CNRS, F-17000 La Rochelle, France

[3] Inst Univ France IUF, 1 Rue Descartes, F-75005 Paris, France

[4] PSL Res Univ, EPHE, USR 3278, UPVD,CNRS,CRIOBE, F-98729 Moorea, French Polynesi, France

[5] Lab Excellence Corail, BP1013 Papetoai, Moorea, French Polynesi, France

关键词: Metals;    Metalloids;    Pacific Ocean;    South Pacific Islands;    Monitoring;   

DOI  :  10.1016/j.marpolbul.2020.111175

来源: Elsevier

【 摘 要 】

French Polynesia exhibits a wide diversity of islands and coral-reef habitats, from urbanized high islands to remote atolls. Here, we present a geographically extensive baseline survey that examine the concentrations of nine metals (Ag, Cd, Co, Cu, Fe, Mn, Ni, Pb and Zn) and one metalloid (As) in superficial sediments from 28 sites spread over three islands of French Polynesia. We used Principal Component Analysis, Pearson's correlation, hierarchical cluster analysis and generalized linear mixed-effect models on Pollution Load Index to investigate site contamination and metal(loid) associations. At most sites, metal(loid) concentrations were below commonly applied sediment quality guidelines. However, a few sites located near farming activities, river discharges and urbanized areas showed concentrations above these guidelines. This study provides critical baseline values for metal(loid) contaminants in this region and in coral-reef areas in general, and spur decreased discharge of metal (loid) contaminants in the anthropogenised areas of French Polynesia.

【 授权许可】

Free