Trace Element Bioaccumulation in Stone Curlew (Burhinus oedicnemus, Linnaeus, 1758): A Case Study from Sicily (Italy)
Trace Element Bioaccumulation in Stone Curlew (Burhinus oedicnemus, Linnaeus, 1758): A Case Study from Sicily (Italy)
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DOI：
10.3390/ijms21134597
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发表时间：
2020-07-01
影响因子：
5.6
通讯作者：
Spena, Maria Teresa
中科院分区：
文献类型：
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作者：
Copat, Chiara;Ferrante, Margherita;Spena, Maria Teresa
该研究旨在突出西西里岛三个地点的微量元素污染程度：马格尼西半岛（MP），位于奥古斯塔-普里奥洛-梅利利石化厂附近；以乡村景观为特征的拉古萨农业生态系统（RA）；以及以集约化农业和废弃的石化厂为特征的格拉平原（GP）。采集石鹬（Burhinus oedicnemusLinnaeus, 1758）的生物标本（磨碎后的背羽和血液）以及土壤样品，采用ICP-MS法测定其微量元素as、Cd、Co、Cr、Cu、Hg、Mn、Ni、Pb、Zn、Se和V的浓度。结果表明，3个地点的堆积趋势不同，这取决于不同的管理方式和地质特征。盖拉平原和马格尼西半岛的砷、钴、铜、锰和硒污染程度较高，马格尼西半岛的铅和汞污染程度较高。然而，没有发现环境的临界值——如果将结果与批准《环境法典》的第152/2006号法令规定的法定限值进行比较，或者是生物的临界值——如果将结果与鸟类的毒理学阈值进行比较，特别是考虑到血液值的短期暴露结果。只有来自RA和GP的动物血液中的硒含量略高于鸟类饲料所需的最低水平。积极的前景一方面可以归因于大约5年前Gela炼油厂的排放中断，另一方面可以归因于在Augusta-Priolo-Melilli石化极周围地区实施的更严格和严格的控制。
The study aimed to highlight the degree of trace element contamination along three sites of Sicily: the Magnisi peninsula (MP), located in proximity to the Augusta-Priolo-Melilli petrochemical plant; the Ragusa agro-ecosystem (RA), characterized by a rural landscape; and the Gela plain (GP), characterized by intensive agriculture and a disused petrochemical plant. We collected biological samples (abraded back feathers and blood) of the Stone Curlew (Burhinus oedicnemusLinnaeus, 1758) as well as soil samples to determine the trace elements concentrations of As, Cd, Co, Cr, Cu, Hg, Mn, Ni, Pb, Zn, Se and V using ICP-MS analysis. The results found for the three sites show different trends of accumulation, which depend on the different management and geological characteristics of the areas. The Gela plain and Magnisi peninsula showed a higher degree of contamination (As, Co, Cu, Mn and Se for the Gela plain; Pb and Hg for the Magnisi peninsula). Nevertheless, no critical values were found for either the environment-if the results are compared with the legal limits fixed by the Legislative Decree No. 152/2006, approving the Code on the Environment-or for living organisms-if the results are compared with the toxicological thresholds for birds, especially if the short-term exposure results from the blood values are considered. Only the Se levels in animal blood from the RA and GP were found slightly higher than the minimum level required in bird diets. The positive scenario can be attributed on the one hand to the interruptions of emissions of the Gela refinery around 5 years ago, and on the other hand to the more intense and strict controls that are implemented in the area surrounding the petrochemical pole of Augusta-Priolo-Melilli.