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Water Pollution

Water Pollution

Rising Nitrate Levels in India’s Groundwater

Rising Nitrate Levels in India’s Groundwater The Central Ground Water Board (CGWB) annual report of December 2024 revealed a sharp rise in groundwater pollution across India. The number of districts with excessive nitrate levels increased from 359 in 2017 to 440 in 2023, now affecting more than 60% of the country. Key Findings and Impacts Area Details Worst-Hit States Rajasthan recorded 49%, Karnataka 48%, and Tamil Nadu 37% nitrate exceedance in groundwater samples. Primary Drivers Excessive use of nitrogenous fertilisers such as urea and over-exploitation of aquifers reducing natural dilution. Health Hazard High nitrate levels can cause Methaemoglobinaemia (Blue Baby…

10 May, 2026 Water Pollution

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