GROUNDWATER IN 10 BIHAR DISTRICTS CONTAMINATED BY URANIUM: STUDY

GROUNDWATER IN 10 BIHAR DISTRICTS CONTAMINATED BY URANIUM: STUDY

• Report found the highest level of 80 micrograms per litre (mpl) uranium in Supaul district. WHO permissible limit is 30 mpl.
• Earlier, a report brought by Central Ground Water Board noted widespread uranium contamination in groundwater from aquifers across 16 states in India including Andhra Pradesh, Chhattisgarh, Gujarat, Haryana, etc.
• Health impacts: bone toxicity and impaired renal function, chronic kidney disease.
• Possible sources of Uranium in ground water:

  1. Geogenic sources (naturally occurring): E.g. weathering by streams or uranium-rich granitic rocks
  2. Anthropogenic (human-caused) factors: Groundwater table decline and nitrate pollution

• Currently, Uranium is not yet included in the list of contaminants monitored under the Bureau of Indian Standards’ Drinking Water Specifications.

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