1、引言/ Foreword 水环境污染趋势:据相关研究,我国水污染造成的经 济损失占总污染损失的比例有逐年上升的趋势 Water pollution trend: The percentage of water pollution cost to total cost is growing. 污染损失估算研究现状:计算结果差别较大,科学性 难以令人满意,实用性较差 Current Research situation: The results differ a lot. The scientific basis behind them is unsatisfactory and their applicability is still in doubt 计算方法不规范/ No standard estimation approach ◆剂量反应关系不完善/ o applicable dose-response functions ◆计算参数欠标准化/ No unified technicalparameters 概念模糊不清/ Basic valuation conceptionis not clear 中国环境规划院 Chinese Academy for Environmental Planning June.25,2004中国环境规划院 Chinese Academy for Environmental Planning June.25, 2004 4 1、引言/Foreword ◼ 水环境污染趋势：据相关研究，我国水污染造成的经 济损失占总污染损失的比例有逐年上升的趋势。 ◼ Water pollution trend:The percentage of water pollution cost to total cost is growing. ◼ 污染损失估算研究现状：计算结果差别较大，科学性 难以令人满意，实用性较差 ◼ Current Research situation: The results differ a lot. The scientific basis behind them is unsatisfactory and their applicability is still in doubt. ◆ 计算方法不规范/No standard estimation approach ◆ 剂量反应关系不完善/No applicabledose-response functions ◆ 计算参数欠标准化/ No unified technical parameters ◆ 概念模糊不清/Basic valuation conception is not clear