对黄河小花区间水质环境调查的结果表明，入黄量最大的污染物是ＣＯＤＣｒ，它主要来源于老蟒河、伊洛河、新蟒河。采用《污水综合排放标准》和等标污染负荷法对调查结果予以评价的结果是，小花区间干流及支流的污染物以有机类为主，尤以ＣＯＤＣｒ和氨氮为最多。预测小花区间２００５年的工业废水排放量将达到２６１７０万ｔ，防治水污染已刻不容缓。 The results of water environment survey of the floret area of ​​the Yellow River show that the pollutant with the largest yellowing amount is CODCr, which mainly comes from Laomu River, Yiluo River and Xinmeihe River. As a result of using the Integrated Wastewater Discharge Standard and the equivalent standard load method to evaluate the survey results, the main pollutants in mainstream and tributary of floret are organic ones, especially CODCr and ammonia nitrogen. It is predicted that the industrial wastewater discharge in 2005 will reach 261.7 million tons. It is urgent to prevent and control water pollution.