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本文通过对我国部分城市水源现状的统计和调查资料的分析,研究了城市水源目前存在的主要问题和合理选择城市水源的重要性.重点论述了水源选址中一般的风险评价和决策方法.在水源选址这种大型工程的风险分析中,应用贝叶斯风险决策和机会损失最小值法,通过验前分析、预验分析和决策树分析,建立了选择新老水源的决策树,最后对水源的选择作出决策.在人群健康的风险影响评价分析中,探讨了目前健康风险评价的一般方法.包括危害鉴定、剂量-效应评估,暴露评估以及风险评定等.针对上海市黄浦江不同位置水源里的有毒有害化合物,应用多介质环境目标值
This article analyzes the statistics and survey data of water sources in some cities in China, studies the main problems existing in urban water sources and the importance of reasonable selection of urban water sources. It focuses on the general risk assessment and decision-making methods in water source siting. In the risk analysis of large-scale projects such as water source site selection, Bayesian risk decision-making and minimum opportunity loss methods are applied. Through pre-analysis, pre-inspection analysis, and decision tree analysis, a decision tree for selecting new and old water sources is established. Decision on the choice of water source. In the analysis of risk assessment of human health, the general methods of health risk assessment are discussed, including hazard identification, dose-effect assessment, exposure assessment, risk assessment, etc. Water sources for different locations in Shanghai Huangpu River Toxic and harmful compounds in the application of multi-media environmental targets