Crude Spillage in Burhi Dihing River

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Crude Spillage in Burhi Dihing River drishtiias.com/printpdf/crude-spillage-in-burhi-dihing-river 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. 1/3 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. 2/3 Source: TH 3/3.

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