Heavy metals in marine sediments of Taranto Gulf (Ionian Sea, Southern Italy)
Heavy metals in marine sediments of Taranto Gulf (Ionian Sea, Southern Italy)
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DOI：
10.1016/j.marchem.2005.09.009
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发表时间：
2006-03-06
期刊：
影响因子：
3
通讯作者：
Maci, A
中科院分区：
文献类型：
--
作者：
Buccolieri, A;Buccolieri, G;Maci, A
测定了意大利南部爱奥尼亚海塔兰托湾表层沉积物样品中Al、Cr、Cu、Fe、Hg、Mn、Ni、Ph、Ti和Zn的含量，以评估其在地中海这一重要区域的水平和空间分布。对于各种金属，计算了地质累积指数，作为评估其浓度是否代表污染水平或可被视为本底水平的标准。结果表明，沉积物中的金属浓度可以被认为接近地中海的背景水平。分析结果已通过地理信息系统(GIS)软件进行了详细阐述，以显示金属聚集区。利用多元统计分析，我们评估了根据采样点的地理位置区分采样点的可能性。结果表明，塔兰托湾的金属分布主要受到工业和城市废物的影响，这些废物主要位于爱奥尼亚海北部沿海地区。巴西里亚塔地区的河流和盛行的逆时针洋流是影响沉积物中金属积累的进一步因素。(C)2005 Elsevier B.V.保留所有权利。
Al, Cr, Cu, Fe, Hg, Mn, Ni, Ph, Ti and Zn concentrations have been determined in surface sediment samples collected in the Taranto Gulf (Ionian Sea, Southern Italy) in order to evaluate their levels and spatial distribution in this important area of the Mediterranean Sea. For various metals, the geoaccumulation index has been calculated as a criterion to assess if their concentrations represent contamination levels or can be considered as background levels. The results show that metals concentrations in sediments can be considered near the background levels found in tire Mediterranean Sea.Analytical results have been elaborated by using a Geographical Information System (GIS) software to show metals accumulation areas. Using multivariate statistical analysis, we evaluate the possibility to distinguish the sampling stations, in relation to their geographical position. Results have showed metals distribution in the Taranto Gulf is principally influenced by industrial and urban wastes, located mostly in the northern coastal area of the Ionian Sea. Rivers in the Basilicata region and prevailing anticlockwise marine currents are further factors influencing metal accumulation in sediments. (c) 2005 Elsevier B.V. All rights reserved.