Q98
Geography (incl. West Bengal)West Bengal Geography
The largest Arsenic de-contamination/purification plant in West Bengal is located at
- a.Gangasagar
- b.Kolkata
- c.Asansol
- d.Farakka
Answer: (D) Farakka
Most closed answer is Farakka (Murshidabad district). Arsenic contamination of groundwater affects the Bhagirathi-Hugli belt of West Bengal, chiefly Malda, Murshidabad, Nadia, North and South 24 Parganas, and the state's main answer has been large treatment plants supplying surface water. The permissible limit of arsenic in drinking water is 0.01 mg per litre (WHO/BIS); long exposure causes arsenicosis ('black foot disease').