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本文对渭河宝鸡、咸阳、西安、渭南四个河段，８５个排污口进行了调查。河道排污量西安段最大为１．８７亿吨占３８％。按等标污染负荷以渭南段最高，其主要排污口尤河仅酚污染的等标负荷就达３５０００万ｍ３，约占有全河的６０％。污染物总排放量：１９８０年污水排放量为４．６５亿吨，１９９０年达５．９５亿吨，应用灰色理论预测，预计１９９５年为６．４９亿吨，２０００年将达７．２０亿吨。目前需环境稀释用水０．９亿吨、２０００年将达到１．３５亿吨。应用黑箱理论对２０００年进行水环境分析及趋势预测：２０００年多数河段按工业三废排放标准不能达到水环境控制目标。主要指标为ＣＯＤ、酚，按地面水标准为Ⅴ或Ⅳ级。说明渭河污染形势严峻，对于污染控制接排放标准不能改变渭河严重污染的势态，必须实行总量控制。
In this paper, the Weihe River in Baoji, Xianyang, Xi’an, Weinan four rivers, 85 sewage outfalls were investigated. Xi’an section of the sewage discharge of the largest amount of 187 million tons accounted for 38%. According to the pollution load of equivalent standard, the weinan section is the highest, with the equivalent standard load of only polluted phenol in the main sewage outfall reaching 350 million m3, accounting for 60% of the whole river. Total pollutant emissions: In 2006, the sewage discharge was 465 million tons, reaching 595 million tons in 1990, predicted by the gray theory. It is estimated that in 1994 it will be 649 million tons and in 2000 it will reach 720 million Ton. At present, it needs 90 million tons of water for environmental dilution and will reach 135 million tons in 2000. Using black box theory to analyze and forecast the water environment in 2000: In 2000, most of the river sections can not reach the water environment control target according to the industrial waste discharge standards. The main indicators for the COD, phenol, according to the ground water standard Ⅴ or Ⅳ level. This shows that the Weihe River pollution situation is grim, and the emission control standards for pollution control can not change the trend of serious pollution in the Weihe River. Therefore, total amount control must be implemented.