Optimization of water quality monitoring cross-sections of the main stream of Yellow River in Ningxia
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Abstract:
The Yellow River is the most important surface water resource in Ningxia, so the water environment quality will directly affect the social and economic development of Ningxia. Based on the statistical data from the environmental monitoring station in Ningxia from 2010 to 2014, using the monitoring data of the main pollutants such as chemical oxygen demand, ammonia nitrogen, and total phosphorus, we employed matter-element analysis, fuzzy clustering, and WASP model to optimize the layout of the Yellow River water quality monitoring cross-sections in Ningxia section. The results showed that the present six national monitoring cross-sections could not provide sufficient monitoring of the water quality variation of Yellow River, and two additional monitoring cross-sections should be added. One should be between Xiaheyan and Jinshawan national monitoring cross-sections, and the other should be between Yesheng Road Bridge and Yingu Road Bridge national monitoring cross-sections. They are respectively at Shikong county (105°40′31″E, 37°34′04″N) and Linhe county (106°18′36″E, 38°16′11″N).
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