Reddy M Srinivasa, Basha Shaik, Sravan Kumar V G, Joshi H V, Ramachandraiah G
Disciplines of Marine Algae & Marine Environment and Analytical Sciences, Central Salt and Marine Chemicals Research Institute, Gijubhai Badheka Marg, Bhavnagar 364 002, Gujarat, India.
Mar Pollut Bull. 2004 Jun;48(11-12):1055-9. doi: 10.1016/j.marpolbul.2003.12.011.
Since its inception in 1982, the Alang-Sosiya yard has become the largest ship scrapping works in the world. Several hundreds of ships arrive every year. The degree of heavy metal contamination has been studied in bulk and fine sediments from the intertidal zone of this ship scrapping yard, two stations, one on either side at 5 km distance and one reference station 60 km distance near Mahuva, towards the south. The samples have been subjected to a total digestion technique and analysed for elements: Cd, Co, Cu, Cr, Fe, Mn, Ni, Pb, Zn and Al, and %TOC. The absolute metal concentrations reflected variations in BF and FF sediment samples with organic matter content. Enrichment factors (EF) and geoaccumulation indices (Igeo) have been calculated and the relative contamination levels are assessed at these sites. At Alang-Sosiya, the enrichment of heavy metals has been observed to be relatively high.
自1982年成立以来，阿朗-索西亚船厂已成为世界上最大的拆船场。每年有数百艘船只抵达。对该拆船场潮间带的块状和细粒沉积物中的重金属污染程度进行了研究，在其两侧各5公里处设了两个站点，在向南距离马胡瓦60公里处设了一个参考站点。对样品采用了全消解技术，并分析了镉、钴、铜、铬、铁、锰、镍、铅、锌、铝等元素以及总有机碳含量。金属绝对浓度反映了块状和细粒沉积物样品中重金属含量随有机质含量的变化。计算了富集因子（EF）和地累积指数（Igeo），并评估了这些站点的相对污染水平。在阿朗-索西亚，观察到重金属的富集程度相对较高。
