期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 181, 期 1-3, 页码 388-392出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2010.05.022
关键词
Biological monitoring; Molluscs; Baseline metal levels; Johnson's method; Probabilistic method; Ecosystems' risk monitoring
资金
- Sapienza, Universita di Roma, Italy [C26F08CSN5 2008]
We develop a 800 km long relative baseline of metal pollution for the Tyrrhenian Sea, from the north of Naples to south of Sicily (Italy), based on spatio-temporal (1997-2004) concentrations of trace metals in marine organisms and on the bioaccumulative properties of those organisms. The study concerns sites in the gulf of Gaeta-Formia, near Naples, and three islands north, west, and south of Sicily: Ustica, Favignana and Linosa. The five metals are: cadmium, chromium, copper, lead, and zinc; the species include: Monodonta turbinata (n = 161), Patella caerulea (n = 244) and the algae Padina pavonica (n = 84). We use Johnson's (1949) [15] probabilistic method to determine the type of distribution that accounts for our data. It is a system of frequency curves that represents the transformation of the standard normal curves. We find an N-S pollution gradient in molluscs considered: the lowest metal pollution occurs around the Sicilian islands. Our method can accurately characterize marine pollution by contributing to: policy-making, coastal resources management, the assessments of environmental damages from marine accidents and other events. The method here presented is a useful tool for pollution comparisons purposes among ecosystems (i.e., risk monitoring) and it is an ideal starting point for its application on a global scale. (C) 2010 Elsevier B.V. All rights reserved.
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