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Crude Spillage in Burhi Dihing River

  • 04 Feb 2020
  • 3 min read

Why in News

A stretch of Dihing or Burhi Dihing in Eastern Assam’s Dibrugarh district witnessed fire following the spillage of crude oil which was being transported to Digboi refinery.

  • Assam is an ecologically sensitive state, spillage of crude or processed oil in river bodies threatens aquatic life.

Oil Spill

  • An oil spill is the release of a liquid petroleum hydrocarbon into the environment, especially the marine ecosystem, due to human activity, and is a form of pollution.

Dihing River

  • Dihing or Burhi Dihing is a large tributary of the Brahmaputra River in Upper Assam.
  • The river originates in the Eastern Himalayas (the Patkai Hills) in Arunachal Pradesh and flows through Tinsukia and Dibrugarh Districts in Assam to its confluence with the Brahmaputra at Dihingmukh.
  • It creates a number of oxbow lakes in the area.
  • Other Tributaries of the Brahmaputra River: Dibang River, Lohit River, Dhansiri River, Kolong River, Kameng River, Manas River, Beki River, Raidak River, Jaldhaka River, Teesta River, Subansiri River.

Digboi Oil Refinery

  • It is India's oldest operating refinery and one of the oldest operating refineries in the world.
  • It is situated in Tinsukia district of Assam.
  • The historic Digboi Refinery has been termed as the "Gangotri of the Indian Hydrocarbon sector.

Oxbow Lake

  • An oxbow lake is a lake that starts out as a curve, or meander, in a river. The U-shaped lake forms along the side of the river as the river finds a different, shorter, course.
  • Water does not flow into or out of oxbow lakes hence they often become swamps or bogs, and dry up as their water evaporates.
  • A meander is a curve in a river. Meanders form a snake-like pattern as the river flows across a fairly flat valley floor.
  • Meanders are typical of the middle and lower course of a river. This is because vertical erosion is replaced by a sideways form of erosion called lateral erosion, plus deposition within the floodplain.

Source: TH

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