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Water quality of the heirok-wangjing river

Author:

Mohendra Singh, N., Kh. Rajmani Singh and Ranabir Singh, P.

Subject Area:

Life Sciences

Abstract:

The Physico-chemical and biological analysis of the Heirok-Wangjing River water was carried out over a stretch of 22.5km. Temperature, transparency, pH, dissolved oxygen, bio-chemical oxygen demand, carbon-dioxide, chloride, total alkalinity, acidity, calcium hardness, NO¬2 and NO3 etc. increased slightly from its origin to the end of the river in the valley. This increase in the parameters was the result of human activities. A total of fifteen species of fish and seven groups of aquatic insects and one class of annelids were recorded from the river.

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