青岛市饮用水源地重金属污染物健康风险初步评价

对青岛市某饮用水源地饮用水的钼、铍、硼、锑、钡、钒、钛、铊、砷、镉、铅、汞、镍、铜、锌共15种重金属元素进行了分析,并应用美国环保局推荐的健康风险评价模型对其所引起的健康风险作了初步评价。结果表明,通过饮水途径所致健康风险中,由致癌物砷所致的健康风险为8.15E-6 a-1,低于国际辐射防护委员会ICRP推荐的最大可接受风险水平5.0×10-5a-1;由非致癌物所致的健康风险中砷最大,铜和硼次之,二者的风险水平为10-9a-1和10-10a-1,均低于ICRP推荐的最大可接受风险水平。

Preliminary Evaluation on Drinking Water Source Heavy Metals Pollutant Health Risks in Qingdao City

This article analysis the heavy metal elements,which include Molybdenum,Beryllium,Boron,Antimony,Barium,Vanadium,Titanium,Thallium,Arsenic,Cadmium,Lead,Mercury,Nickel,Copper,Zinc from the drinking water source in Qingdao city.By using this data and a health risk assessment model from EPA（Environmental Protection Agency,US）,the author has given a preliminary evaluation result.The result shows that,the drinking water in Qingdao,elements which may cause cancer like Arsenic,the health risk value： 8.15E-6 a-1 is lower than ICRP from EPA system accepted value： 5.0×10-5 a-1.And for those caused by non-carcinogenic health risks,arsenic is the most,followed by copper and boron,the risk value of them is 10-9 a-1 to 10-10 a-1,lower than the maximum acceptable value recommended by ICRP.