宝鸡市东沙河流域水质污染评价

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英文篇名：Water Pollution Assessment of Dongsha River Basin in Baoji City 作者：周欢欢 ; 刘引鸽 ; 胡浩楠 英文作者：ZHOU Huan-huan;LIU Yin-ge;HU Hao-nan;College of Geography & Environment,Baoji University of Arts & Sciences;The Key Laboratory of Disaster Monitoring & Mechanism Simulating of Shaanxi Province,Baoji University of Arts & Sciences; 关键词：东沙河 ; 水质评价 ; 评价方法 英文关键词：Dongsha River;;water quality evaluation;;evaluation method 中文刊名：四川环境 英文刊名：Sichuan Environment 机构：宝鸡文理学院地理与环境学院;宝鸡文理学院灾害监测与机理模拟陕西省重点实验室; 出版日期：2019-06-26 出版单位：四川环境 年：2019 期：03 基金：近200年来渭河流域气候变化水文效应特征与机制研究(41771048);; 西北地区能源开发利用生态效应综合测评与安全调控研究(15XZZ012);; 渭河流域灾害生态风险变化模式及适应研究(13JS010) 语种：中文; 页：36-41 页数：6 CN：51-1154/X ISSN：1001-3644 分类号：X824

摘要

对宝鸡市东沙河流域7个断面进行采样,分析污染因子特征,采用单因子评价法、综合污染指数法和改进的内梅罗指数法相结合,对东沙河水质进行综合评价。结果表明:七个断面流域主要污染物为COD,氨氮次之。东沙河流域磷、化学需氧量、氨氮浓度呈下降趋势,pH含量缓慢上升。河流域上游水质为Ⅲ类,中下游水质为Ⅴ类。河流上游污染因子为COD、主要污染物为工农业废水。中下游主要污染物为COD、氨氮。工业废水排放量是影响流域水质的主要原因。生活污水、固体废弃物以及农业废水溢流量对河流水质的变化也有重要作用。
        Seven sections of Dongsha River Basin in Baoji City were sampled to analyze the characteristics of pollution factors. The single factor evaluation method, comprehensive pollution index method and improved Nemero index method were combined to comprehensively evaluate the water quality of Dongsha River. The results showed that the main pollutants in the seven sections are COD, followed by ammonia nitrogen. Phosphorus, chemical oxygen demand and ammonia nitrogen concentration in the Dongsha River Basin showed a downward trend, and the pH increased slowly. The water quality in the upper reaches of the river basin is Class III, and the water quality in the middle and lower reaches is Class V. The upstream pollution factor of the river is COD, and the main pollutant is industrial and agricultural wastewater. The main pollutants in the middle and lower reaches are COD and ammonia nitrogen. Industrial wastewater discharge is the main reason affecting water quality in the basin. Domestic sewage, solid waste and agricultural wastewater overflows also play an important role in the change of river water quality.

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