REVIEW PAPER
Review of Risk Assessment and Mitigation
Measures of Coastal Aquifers Vulnerable
to Saline Water Intrusion
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1
Elitte College of Engineering, Affiliation: MAKA University of Technology, Kolkata, India
2
School of Engineering and Technology, The Assam Kaziranga University, Jorhat, Assam, India
3
Department of Civil Engineering, North Eastern Regional Institute of Science and Technology,
Nirjuli, Arunachal Pradesh, India
4
North Eastern Hydraulic and Allied Research Institute, Rudreswar, Assam, India
Submission date: 2021-06-08
Final revision date: 2021-08-19
Acceptance date: 2021-09-18
Online publication date: 2022-01-18
Publication date: 2022-03-22
Corresponding author
Sudip Basack
Civil Engineering, Elitte College of Engineering, 29 MADAN MITRA LANE, 700113, Kolkata, India
Pol. J. Environ. Stud. 2022;31(2):1505-1512
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ABSTRACT
The extent of risk is the key measure of sustainable performance of engineering and natural systems
and coastal aquifers are no exceptions. Aquifers in the coastal regions are vulnerable to saltwater
intrusion (SWI) that attributes to the degradation of freshwater quality in the aquifers. The major
factors that influence saline water intrusion are sea level rise due to climate change and the impact of
human activities. The water quality erodes rapidly when these factors act simultaneously. Abstraction
Desalinization Recharge (ADR) and Qanat-well structure methods are found to be effective methods to
mitigate the risk in terms of cost and abstraction of groundwater in specific regions without intensifying
saltwater intrusion. Risk management studies are useful to assess the vulnarabilty and economic loss
involved in coastal aquifer management. In this paper, a review of risk assessment and mitigation
measures of coastal aquifers vulnerable to saltwater intrusion is presented.