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- W4213132431 abstract "Oil spills have such a severe economic impact on marine activities and on those who use the estuarine ecosystem’s resources. This disruption is reversible in most situations and is mainly caused by physical properties of the oil, causing disturbance and hazardous conditions. Toxicity and diluting massive increase from the chemical structure of the oil and also the diversity and heterogeneity of living organisms and their responsiveness to oil pollution compound the influence on estuary survival. The estuary of Bhagirathi-Hooghly River (Kidderpore-Haldia stretch) is an integral part of the way of life in southern West Bengal. The concentration of oil spilt material has increased in the river bed with the progress of urban, port and industrial development beside the river. The amount and nature of pollution has increased with the advancement of civilization. The present paper deals with the seasonal and spatial variation of oil spilt material concentration in estuarine terrain and compares the concentration pattern with various metal indices in sediment. The heavy metal concentrations have been extracted by collecting sediment samples from multiple places along the 94 km course (Kidderpore-Haldia stretch) of the estuary part in Bhagirathi-Hooghly river. Enrichment factor exposed the level of pollution in both upstream and downstream sections due to the presence of industrial and port habitation. During a monsoon, as the velocity increases, most of the polluted material is carried away as a suspended flow with sediment. Effects of oil on biological resources of river ecosystem are caused by either the physical nature of the oil (physical contamination and smothering) or by its chemical components (toxic effects and accumulation leading to tainting). The sensitivity of the study area’s ecological portion is evaluated through Benthic Opportunistic Polychaete-Amphipod index. This study will be beneficial to local stakeholders for the economic and social use of water from the river and also the government to take a proper action plan against this. The enhancing heavy metal concentration due to an oil spill may lead to the destruction of the local ecological habitat soon." @default.
- W4213132431 created "2022-02-24" @default.
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- W4213132431 date "2022-01-01" @default.
- W4213132431 modified "2023-10-16" @default.
- W4213132431 title "Spatiotemporal distribution of oil spill effect in the estuarine terrain of Bhagirathi-Hooghly River, West Bengal, India" @default.
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- W4213132431 doi "https://doi.org/10.1016/b978-0-323-89978-9.00002-1" @default.
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