水质综合评价法及其应用研究--以潮河流域为例

he main aim of water quality assessment is to assess the water value and requirement in treatment by choosing suitable water quality parameter, water quality criterion and method. And the purpose of water quality assessment should reflect the status of the water quality, and consequently provide scientific basis for water pollution control, regional environment management, and water utilization. Thus the selection of the method was the key for water quality assessment. In this paper, a new method for water quality assessment, water quality comprehensive assessment method, is proposed. In fact, water quality comprehensive assessment method is a comprehensive method on basis of combination of the improved water quality index evaluation method and the water quality assessment characteristic comprehensive model. In this paper, all the three method, including the improved water quality index evaluation method, the water quality assessment characteristic comprehensive model and the water quality comprehensive assessment method, was applied to assess the water quality in the upper branch of Chaohe Rive from 2002 to 2004. Results indicated that the water quality comprehensive assessment method integrated the both superiority of the improved water quality index evaluation method and the water quality assessment characteristic comprehensive model, which was simple, clear and easy in operation, and can provided scientific reference for future water quality assessment.