张家口市洋河、桑干河流域水环境健康风险评价

张家口市洋河、桑干河流域近几年来水质持续改善,为逐步恢复流域水质和下游官厅水库饮用水备用水源功能提供了条件.文章利用水环境健康风险评价模型,选取了2006年该流域水质监测数据,对流域内10个监测断面由饮水途径引起的水环境健康风险进行了评价.结果表明,该流域水体对人体健康危害最大的是化学致癌物Cr(VI),在各个监测断面中Cr(VI)的个人年风险均超过ICRP推荐的标准.同时,化学致癌物对人体健康危害的个人年风险超过非致癌物的个人年风险;因此对该流域水体的含化学致癌物Cr(VI)和As废水进行控制和治理是降低水环境健康风险的有效途径.

Environmental Health Risk Assessment of Water Quality in Yanghe and Sangganhe Watershed of Zhangjiakou

Over the past few years,the water quality of Yanghe and Sangganhe watershed has gradually increased.Based on the model for health risk analysis and the monitoring data in 2006,this research assessed the harm of heavy metals in the water environment on public health in the Yanghe and Sangganhe watershed of Zhangjiakou,Hebei Province.The result shows that the health risks of Cr(VI) to the individual person per year in terms of carcinogens is higher than the standard value recommended by ICRP in all sections.A...