再生水道路降尘化学污染物的健康风险评价研究

利用健康风险评价的方法,以北京市某再生水利用工程为依托,对再生水用于道路降尘时接触人群的暴露水平和健康风险进行了调查和实验研究,建立了再生水用于道路降尘的健康风险评价模型,提出了再生水对职业人群和公众的暴露参数,对再生水中氯仿等19种主要污染物的健康风险进行了定量评价,结果表明,再生水用于道路降尘职业人群致癌的总危险度为8.47×10^-6;非职业人群致癌的总危险度为3.78×10^-6.

Research on the Health Risk Assessment of Chemical Pollutants in Reclaimed Water Used for Streets Watering

It is the first time for this research to utilize the method of health risk assessment. Combining with Beijing reclaimed water project, the exposure dose level and health risk to contact people are investigated and studied. The risk assessment model is built, and the exposure parameters of occupational workers and common people are provided, when reclaimed water was used for streets watering. The health risks of 19 main chemical pollutants in reclaimed water are evaluated quantificationally. The results show that the total risk caused by carcinogens is 8.47×10^-6 for occupational workers and 3.78×10^-6 for common people.