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Salinization of Coastal Groundwater Resource in the Perspective of Climate Change

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Fate and Transport of Subsurface Pollutants

Part of the book series: Microorganisms for Sustainability ((MICRO,volume 24))

Abstract

Groundwater is around one third of global water withdrawals and serve drinking water. Coast is a most sensorial and dynamic geomorphic unit where marine, Aeolian, and terrestrial system meet. Coast is a potential area for human dwell, around 70% of world population live along the coast, and this population is growing exponentially to support the increasing population growth and development requires a large quantity of freshwater. In several areas groundwater resource is a subject of worry in respect to both quantity and quality. Groundwater salinization is considered a specific category of pollution that portends groundwater resources, because mixing a small quantity of saltwater with groundwater makes freshwater unsuitable and can result in abandonment of freshwater supply. Pumping or over extraction is considered the key reason of saltwater intrusion into coastal groundwater aquifers in several areas of the world although climate change and global warming have significantly accelerated sea-level rise and groundwater recharge.

Saltwater intrusion poses a major restriction to utilization of groundwater so saltwater intrusion should be prevented or at least have to be controlled. It is essential to practical measures and protect the available groundwater resources from pollution, saltwater intrusion, and contaminants which deplete quality. The modern computer modelling techniques can be used to design better groundwater withdrawal networks and methods to reduce the probability of sea-water intrusion and contaminations.

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Acknowledgements

The authors are grateful to Central University of Jharkhand for the necessary help. The first author is thankful for UGC Net-JRF fellowship during the tenure.

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Bar, S., Kumari, B., Gupta, S.K. (2021). Salinization of Coastal Groundwater Resource in the Perspective of Climate Change. In: Gupta, P.K., Bharagava, R.N. (eds) Fate and Transport of Subsurface Pollutants. Microorganisms for Sustainability, vol 24. Springer, Singapore. https://doi.org/10.1007/978-981-15-6564-9_17

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