Ocean Science and Technology for Islands, National Institute of Ocean Technology, Ministry of Earth Sciences, Government of India, Chennai, India.
Ocean Science and Technology for Islands, National Institute of Ocean Technology, Ministry of Earth Sciences, Government of India, Chennai, India.
Mar Pollut Bull. 2021 Jun;167:112342. doi: 10.1016/j.marpolbul.2021.112342. Epub 2021 Apr 14.
In recent years, urban and industrial development initiatives at Puducherry and Diu such as tourism, shipping, and fisheries have led to sediment contamination by trace metals, and contributed to this investigation that extended from 2016 to 2017. Strong factor loadings of Cd (0.94), Ni (0.84), Al (0.84), Cr (0.83), Co (0.82), and Fe (0.78) illustrated the variability at Puducherry, whereas Cr (0.88), Cd (0.86), Ni (0.83), Co (0.77), Cu (0.77), and Fe (0.77) showed variability at Diu. The mean rank order distribution of the top three metals in sediment was Fe > Al > Mn, which exhibited higher variability. The highest contamination factor was observed for Cd at Diu, whereas the lowest was observed at Puducherry for Al. Similarly, the risk index also exhibited considerable risk which could be attributed to Cd contamination in the sediment at Diu compared with that at Puducherry. The results obtained are essential to establish a reference for better comparison and management of the tropical environments.
近年来，本地治里和第乌的城市和工业发展计划，如旅游业、航运和渔业，导致沉积物受到痕量金属的污染，促成了这项从 2016 年到 2017 年的调查。Cd（0.94）、Ni（0.84）、Al（0.84）、Cr（0.83）、Co（0.82）和 Fe（0.78）的强因子负荷表明了本地治里的变异性，而 Cr（0.88）、Cd（0.86）、Ni（0.83）、Co（0.77）、Cu（0.77）和 Fe（0.77）则表明了第乌的变异性。沉积物中前三名金属的平均等级分布为 Fe＞Al＞Mn，表现出更高的变异性。在第乌，Cd 的污染因子最高，而在本地治里，Al 的污染因子最低。同样，风险指数也表现出相当大的风险，这可能归因于第乌沉积物中的 Cd 污染比本地治里更严重。这些结果对于建立一个参考基准，以便更好地比较和管理热带环境是至关重要的。
