TNPSC Thervupettagam

Fluorine contamination in groundwater 2024

September 4 , 2024 21 hrs 0 min 23 0
  • Fluoride contamination in groundwater is above-permissible levels of the mineral across states of Rajasthan, Telangana, western Andhra Pradesh and eastern Karnataka.
  • It has also prevailed in parts of Haryana, Gujarat, Madhya Pradesh, Tamil Nadu, Uttar Pradesh, Jharkhand, Bihar and Chhattisgarh.
  • Excess fluoride increases the risks of disease conditions like skeletal fluorosis, accelerates the rate of dental decay.
  • The nationally permissible limit of Fluoride is 1.50 milligrams/litre.
  • Contamination over 1.50mg/litre is deemed unfit for drinking purposes.
  • The average concentration of fluoride in groundwater was higher in dry, western Indian regions.
  • Rajasthan topped in the charts and the post-monsoon concentration of fluorine was found to be above normal in Karnataka, Tamil Nadu and Jharkhand.

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