WATER QUALITY EVALUATION OF YANHE RIVER BASED ON THE IMPROVED WATER POLLUTION INDEX

摘要：

　　Considering the problems that exist in water quality assessment by using Water Pollution Index (WPI), an improved WPI method is proposed, in which entropy method is used to get each indictors weight and then the improved WPI is calculated.The improved WPI method was tested and validated using the data from 5 monitoring sections of Yanan environmental monitoring station, and the results were compared with the evaluation results by traditional WPI method, fuzzy comprehensive evaluation method, set pair analysis method based on entropy weight, combination model evaluation method and comprehensive pollution index method.Results show that the improved WPI method is more accurate and objective.Whats more, it retains low computational complexity.That demonstrates that the improved WPI method is reasonable and suitable in application of water quality evaluation.

关键词： Water quality evaluation Water Pollution Index Entropy method Fuzzy comprehensive Evaluation

作者: Ranran Li Zhihong Zou Yan An

作者单位: School of Economics and Management, Beihang University, Beijing 100191, China

会议类型: 国际会议

会议名称: The 12th International Conference on Industrial Management(第十二届工业管理国际会议)

会议地点: 成都

会议语种:英文

页码: 275-278

在线出版日期: 2014-09-03（万方平台首次上网日期，不代表论文的发表时间）