沙特阿拉伯红海北部瓦吉地区岩芯沉积物的分布和金属污染。
Distribution and metal contamination in core sediments from the North Al-Wajh area, Red Sea, Saudi Arabia.
机构信息
Geology and Geophysics Department, College of Science, King Saud University, Saudi Arabia; Geology Department, Faculty of Science, South Valley University, Egypt.
Geology and Geophysics Department, College of Science, King Saud University, Saudi Arabia; Geology Department, Faculty of Science, Zagazig University, Egypt.
出版信息
Mar Pollut Bull. 2020 Mar;152:110924. doi: 10.1016/j.marpolbul.2020.110924. Epub 2020 Feb 17.
Forty-one bottom sediment samples were collected from three cores at the mouth of Wadi Haramel, Wadi Antar, Wadi Dumaygh, north of Al-Wajh, Red Sea, Saudi Arabia, to evaluate the levels of heavy metal contamination, using the enrichment factor (EF), geoaccumulation index (Igeo), contamination factor (Cf), soil pollution index (SPI), and multivariate statistical analysis (hierarchical cluster analysis and principal component analysis). Fe, Al, Pb, Mn, Cu, Ni, Co, Cd, Sr, V, Hg, and Total Organic Matter (TOM%) were quantified by Atomic Absorption Spectrophotometer. The vertical distribution of the heavy metals concentrations increased upwards indicating high heavy metals input. The results of enrichment factor and soil pollution index calculations indicate a strong anthropogenic supply of Cd and Sr (SPI = 1.10, 2.70, EF = 18.25, 17.99 respectively) while Cu and Ni show moderate anthropogenic input from urban, industrial activities and some new projects in the northern coast of Saudi Arabia.
从沙特阿拉伯西北部瓦迪哈马勒、瓦迪安塔尔和瓦迪杜马格的三个岩芯中采集了 41 个底部沉积物样本，以评估重金属污染水平，使用富集因子 (EF)、地积累指数 (Igeo)、污染因子 (Cf)、土壤污染指数 (SPI) 和多元统计分析（层次聚类分析和主成分分析）。原子吸收分光光度计定量测定 Fe、Al、Pb、Mn、Cu、Ni、Co、Cd、Sr、V、Hg 和总有机物质 (TOM%)。重金属浓度的垂直分布向上增加，表明重金属输入量很高。富集因子和土壤污染指数计算的结果表明，Cd 和 Sr 具有很强的人为供应（SPI = 1.10，2.70，EF = 18.25，17.99 分别），而 Cu 和 Ni 则显示出沙特阿拉伯北部沿海城市、工业活动和一些新项目的适度人为输入。
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