🚰 Bengaluru lakes unfit for drinking

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The state pollution control board conducted a study that revealed that not a single lake in the city is fit to be a source of drinking water due to untreated sewage and industrial effluents contaminating them.

Story so far: A water quality analysis conducted by Karnataka State Pollution Control Board (KSPCB) reported that of the 105 lakes present in the city, not a single lake falls into any of the drinking water categories.

  • Class A water quality is fit for drinking without treatment while Class B is fit for outdoor bathing. Class C is fit for drinking after conventional treatment.
  • Class D water from lakes can be used for the propagation of wildlife while Class E is fit for irrigation.

Sewage problem: 1,456 mld of sewage is generated in Bengaluru daily out of which only 50% is treated at sewage treatment plants. The major reason for undrinkable water in the lakes is pollution, with 80% accounting for sewage and 20% industrial effluents.

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