Han Gui
Abstract
The paper fully explains the water pollution state and water quality variation trend in Yitonghe river through analysis of water quality pollution state in 1994 year and 1999 year, and analyses the cause of water pollution.
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The paper fully explains the water pollution state and water quality variation trend in Yitonghe river through analysis of water quality pollution state in 1994 year and 1999 year, and analyses the cause of water pollution.
Key concepts: Pollution, Environmental science, Water quality, Water pollution, River pollution, Water resource management, Hydrology (agriculture), United States regulation of point source water pollution