Department of Environment and Energy, Science and Research Branch, Islamic Azad University, Tehran, Iran.
Department of Environment and Energy, Science and Research Branch, Islamic Azad University, Tehran, Iran.
Mar Pollut Bull. 2017 Feb 15;115(1-2):401-411. doi: 10.1016/j.marpolbul.2016.11.033. Epub 2016 Dec 20.
In this study, total concentration and speciation of heavy metals in sediments of the Asaluyeh, one of the Iran's largest commercial ports, are investigated. 48 sediment samples were collected and analyzed for trace and major elements. Sediment quality guidelines along with calculated enrichment factors and trace metal profiles indicate that Asaluyeh port is threated by contamination, especially with respect to Hg and Cu. Normalization to Sc indicated high enrichment factors in the sediments following the decreasing order of: Hg>Cu>As>Ni>Zn>Pb≈Cr≈Mn>Co≈V≈Fe≈Al. Hg displayed the greatest potential ecological risk factor among sampling stations. The results of sequential extraction procedure revealed that in some stations >50% of Mn, V, Cu and Zn occur in potentially mobile phases and therefore are more readily mobilized in the sediments of the study area.
本研究调查了伊朗最大商业港口之一阿萨鲁耶赫（Asaluyeh）沉积物中的重金属总量和形态。采集了 48 个沉积物样本，并对微量元素和主要元素进行了分析。沉积物质量准则以及计算出的富集因子和痕量金属分布表明，阿萨鲁耶赫港受到了污染的威胁，特别是汞（Hg）和铜（Cu）。与 Sc 归一化相比，Hg、Cu、As、Ni、Zn、Pb（≈Cr、Mn、Co、V、Fe、Al）的富集因子依次降低，这表明沉积物中存在高富集因子。Hg 在采样站中显示出最大的潜在生态风险因素。顺序提取程序的结果表明，在一些站点中，超过 50%的 Mn、V、Cu 和 Zn 存在于潜在可移动相中，因此在研究区域的沉积物中更容易移动。
