%0 Journal Article
%T Preliminary Health Risk Assessment of Heavy Metals in Drinking Waters in Beijing<br>北京市饮用水源水重金属污染物健康风险的初步评价
%A GAO Ji jun
%A ZHANG Li ping
%A HUANG Sheng biao
%A MA Mei
%A WANG Zi jian
%A <br>高继军
%A 张力平
%A 黄圣彪
%A 马梅
%A 王子健
%J 环境科学
%D 2004
%I 
%X Concentrations distribution of the Cu, Hg, Cd, As in drinking water in the 8 city districts and 10 counties in Beijing was studied based on a total of 120 random samples. Health risks associated with 4 metals in drinking water were assessed using USEPA health risk assessment model. The results showed that the concentrations of the heavy metals in drinking water in Beijing ranged from 0.81 to 6.96 micrograms.L-1 for Cu, 0.34-0.82 microgram.L-1 for Cd, 0.10-0.74 microgram.L-1 for Hg and 0.19-3.02 micrograms.L-1 for As. Among the health risks caused by the carcinogens in drinking water, the largest risk associated with As should be in Tongzhou County (2.0 x 10(-5).a-1) and that with Cd should be in Changping County (2.3 x 10(-6).a-1), while both were significantly lower than the maximum allowance levels recommended by ICRP(5 x 10(-5).a-1). Among the non-carcinogenic risks in drinking water, the largest risk was the risk associated with Hg, followed by Cu. The non-carcinogenic risks levels ranged from 10(-8) to 10(-9), much lower than the maximum allowance levels recommended by ICRP.
%K heavy metals
%K drinking water
%K health risk
%K assessment<br>重金属
%K 饮用水
%K 健康风险
%K 评价
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=0F00FF53FE347111&yid=D0E58B75BFD8E51C&vid=C5154311167311FE&iid=0B39A22176CE99FB&sid=F4B561950EE1D31A&eid=771152D1ADC1C0EB&journal_id=0250-3301&journal_name=环境科学&referenced_num=64&reference_num=22