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Excessive Nitrates in India – CGWB (Central Ground Water Board)
January 4 , 2025
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- High nitrate levels have been found in groundwater of 440 districts across India.
- This is an increase from 359 such districts in 2017
- 20 per cent of the samples collected are exceeding the permissible nitrate concentration of 45 milligrams per liter (mg/l).
- 9.04 per cent of samples had fluoride levels above the safe limit.
- 3.55 per cent showed arsenic contamination.
- Rajasthan, Karnataka, and Tamil Nadu had over 40 per cent of samples above the limit.
- There was high contamination in samples from -- Maharashtra at 35.74 per cent, Telangana at 27.48 per cent, Andhra Pradesh at 23.5 per cent and Madhya Pradesh at 22.58 per cent.
- Uttar Pradesh, Kerala, Jharkhand and Bihar reported lower percentages.
- In Arunachal Pradesh, Assam, Goa, Meghalaya, Mizoram and Nagaland, all samples were within safe limits.
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