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Water supply hit due to increase in pollutants in Yamuna: Delhi Govt.

Why in news: Due to the increase in ammonia levels in the Yamuna near Wazirabad, water supply in the Capital was hit.

Water production was hit due to heavy sewage and industrial discharge from Haryana. Heavy sewage and industrial waste was discharged by Haryana during Diwali in the Yamuna, which increased ammonia levels, forcing water treatment plants to reduce operating capacity by 50%. However, by evening, the situation was stabilised and the plants are operating above 90% capacity.

The level of ammonia in the Yamuna increased to 3 ppm (parts per million), affecting water production various treatment plants.

The Delhi Government has said it is working closely with Haryana to address the issue of ammonia in the Yamuna. The Yamuna river accounts for more than 70 percent of Delhi’s water supply.

Facts for Prelims

Yamuna

  • Yamuna is the second-largest tributary river of the Ganga and the longest tributary in India.
  • Originating from the Yamunotri Glacier at a height of 6,387 metres (20,955 ft) on the southwestern slopes of Banderpooch peaks of the Lower Himalaya in Uttarakhand, it travels a total length of 1,376 kilometres (855 mi).
  • It merges with the Ganga at Triveni Sangam, Prayagraj, which is a site of the Kumbh Mela, a Hindu festival held every 12 years.
  • TributoriesTons, Chambal, (its longest tributary), Sindh, the Betwa, Ken, Hindon, Somb (a rivulet)

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