期刊
MARINE POLLUTION BULLETIN
卷 167, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2021.112342
关键词
Sediment; Trace metal; Puducherry; Diu; Contamination factor; Ecological risk index
资金
- Ministry of Earth Sciences [MoES/MB/NIOT/4/2017PCII]
The study found that sediment contamination by trace metals due to urban and industrial development initiatives at Puducherry and Diu has led to considerable risk, with Cd contamination being particularly high in Diu compared to Puducherry. The results are essential for establishing a reference for better comparison and management of tropical environments.
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.
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