Bioassessment of trace element contamination of Mediterranean coastal waters using the seagrass Posidonia oceanica

JOURNAL OF ENVIRONMENTAL MANAGEMENT

卷:151

Article

Richir, J.^1,2  Salivas-Decaux, M.³  Lafabrie, C.^3,4  Lopez y Royo, C.³  Gobert, S.¹  Pergent, G.³  Pergent-Martini, C.³ 

[1] Univ Liege, MARE Ctr, Lab Oceanol, B6C, B-4000 Liege, Sart Tilman, Belgium

[2] Univ Portsmouth, Inst Marine Sci, Portsmouth PO4 9LY, Hants, England

[3] Univ Corsica, Fac Sci, EqEL, FRES 3041, F-20250 Corte, France

[4] Univ French Polynesia, UMR EIO 241, F-98702 Faaa, Tahiti, France

关键词: Mediterranean;    Posidonia oceanica;    Trace element (TE);    Water quality scale;    Pollution index;    Spatial analysis;   

DOI  :  10.1016/j.jenvman.2014.11.015

来源: Elsevier

【 摘 要 】

A large scale survey of the trace element (TE) contamination of Mediterranean coastal waters was performed from the analysis of Ag, As, Cd, Cu, Hg, Ni and Pb in the bioindicator Posidonia oceanica, sampled at 110 sites differing by their levels of exposure to contaminants. The holistic approach developed in this study, based on the combined utilization of several complementary monitoring tools, i.e. water quality scale, pollution index and spatial analysis, accurately assessed the TE contamination rate of Mediterranean coastal waters. In particular, the mapping of the TE contamination according to a new proposed 5-level water quality scale precisely outlined the contamination severity along Mediterranean coasts and facilitated interregional comparisons. Finally, the reliability of the use of P. oceanica as bioindicator species was again demonstrated through several global, regional and local detailed case studies. NB: The designations employed and the presentation of the information in this document do not imply the expression of any opinion whatsoever on the part of the authors concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. (C) 2014 Elsevier Ltd. All rights reserved.

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