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The Digha coast, a prominent tourism hub in the maritime state of West Bengal, faces a growing challenge from acidification of its coastal waters. This phenomenon, primarily driven by anthropogenic factors like untreated wastewater from domestic sources, tourism units and shrimp farms, and industrial effluents, accelerates the corrosion of infrastructure critical to the local tourism economy. Seasonal variations in pH levels reveal significant fluctuations, with highest value in premonsoon (mean value = 8.28), followed by postmonsoon (mean value = 8.27), and monsoon (mean value = 8.24). Using a comprehensive dataset of more than three decades (1984–2022) spanning across three seasons (premonsoon, monsoon, and postmonsoon), this paper examines the impact of acidification on Digha’s tourism units along with forecasting the scenario of aquatic pH in 2050. The paper also emphasizes policy interventions to combat the adverse impact of acidification. This study highlights the urgent need for strict enforcement of the Coastal Regulation Zone (CRZ) notifications to achieve ecological stability and sustain the economic viability of Digha’s tourism sector. Recommendations include strengthening mangrove conservation, promoting sustainable waste management practices, and enhancing CRZ compliance.

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Policy Interventions to Mitigate Acidification in Coastal Waters of Digha

  • 会议论文

  • 发表日期：

    2026年

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  • Nabonita Pal,
  • Nagaraj Narayan Sannabhadti,
  • Shambhu Prasad Chakrabarty,
  • Sufia Zaman,
  • Abhijit Mitra

摘要

The Digha coast, a prominent tourism hub in the maritime state of West Bengal, faces a growing challenge from acidification of its coastal waters. This phenomenon, primarily driven by anthropogenic factors like untreated wastewater from domestic sources, tourism units and shrimp farms, and industrial effluents, accelerates the corrosion of infrastructure critical to the local tourism economy. Seasonal variations in pH levels reveal significant fluctuations, with highest value in premonsoon (mean value = 8.28), followed by postmonsoon (mean value = 8.27), and monsoon (mean value = 8.24). Using a comprehensive dataset of more than three decades (1984–2022) spanning across three seasons (premonsoon, monsoon, and postmonsoon), this paper examines the impact of acidification on Digha’s tourism units along with forecasting the scenario of aquatic pH in 2050. The paper also emphasizes policy interventions to combat the adverse impact of acidification. This study highlights the urgent need for strict enforcement of the Coastal Regulation Zone (CRZ) notifications to achieve ecological stability and sustain the economic viability of Digha’s tourism sector. Recommendations include strengthening mangrove conservation, promoting sustainable waste management practices, and enhancing CRZ compliance.