福州市饮用水源水质公众健康危害评价

The Environment Public Health Risk Assessment of Fuzhou Driking Water Quality

以福州市饮用水源水质评价为例，具体阐述了公众健康危害评价的方法步骤、计算模式、参数选择等问题．结果表明：福州市区饮用水源（未经净化）经饮水途径所致健康危害个人年平均危险为10．54×10－5／a，已超过最大可接受水平1倍多，危害作用最大的污染物是As和Cr6+．

Taking Fuzhou drinking water quality assessment as example, this paperdescribes substantially the method and procedures of the public health risk assessment,and also the option of computation model and parameters. The result shows that the personal risk of Fuzhou drinking water (unpurified) caused by drinking is 10. 54 × 10-5/a,having exceeded the highest acceptable level of 5. 0×10-5/a, and the most harmful POllutants are As and Cr6+.