Application of Water Pollution Index in Water Quality Assessment of Rivers
Application of Water Pollution Index in Water Quality Assessment of Rivers
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发表时间：
2013
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通讯作者：
Wang Mei
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作者：
Wang Mei
针对现有的单因素评价方法和综合污染指数法在水质评价中存在的问题，提出了一种新的水污染指数法，以满足日益增长的水质评价和管理的要求。利用2009年已有的数据集对水污染指数法进行了验证，并与单因素评价法、综合污染指数法、模糊综合评判法和主成分分析法的评价结果进行了比较。结果表明，水污染指数法在水质等级评价、水质量化、主要污染指标识别等方面具有较好的适用性。对水质劣于V类的水体进行水质对比，且WPI法的计算过程易于掌握，因此水质评价的WPI在水质评价中具有较强的推广和应用价值。
According to the problems that exist in water quality assessment by using current single factor assessment method and comprehensive pollution index method,a new Water Pollution Index(WPI) method was proposed to meet the growing request of water quality assessment and management.The WPI method had been tested and validated in the main stream of Xiangjiang River using the available data sets of 2009,and the results were compared with the evaluation results by using single factor assessment,comprehensive pollution index,fuzzy comprehensive evaluation and principal component analysis methods.Results showed that the WPI method was much more suitable in assessing water quality levels,quantifying water quality,identifying main pollution indicators,comparing water quality of water bodies whose quality were inferior to Class V.Furthermore,the computing process of the WPI method was easy to master.So the WPI for water quality assessment was supposed to have the strong promotion and application value in water quality assessment.