四川环境
四川環境
사천배경
2012年
2期
98-102
,共5页
重金属%健康风险%饮用水%非确定性%农村水源地
重金屬%健康風險%飲用水%非確定性%農村水源地
중금속%건강풍험%음용수%비학정성%농촌수원지
Heavy metals%health risk%drinking water%uncertainty%rural drinking water source
介绍了饮用水水源地中基因毒物质和躯体毒物质所致的健康危害的风险度计算模型,并根据雅安市雨城区农村水源地水质实测资料,进行健康风险评价与分析。结果表明：（1）基因毒物质由饮水途径所致健康危害的个人年风险按大小排列为Cr（VI）〉As〉Cd,而躯体毒物质的个人年风险按大小排列为Hg〉Pb〉Mn〉Fe,但前者的影响远大于后者;（2）水源地中的3种基因毒物质所致健康危害的个人年风险,远远超过瑞典环保局、荷兰建设和环境部推荐的最大可接受水平1.00×10^-6a^-1,且Cr（VI）的健康风险危害超过国际辐射防护委员会（ICRP）推荐的最大可接受值5.00×10^-5a^-1,应将Cr（VI）视为本区饮水的优先治理污染物。
介紹瞭飲用水水源地中基因毒物質和軀體毒物質所緻的健康危害的風險度計算模型,併根據雅安市雨城區農村水源地水質實測資料,進行健康風險評價與分析。結果錶明：（1）基因毒物質由飲水途徑所緻健康危害的箇人年風險按大小排列為Cr（VI）〉As〉Cd,而軀體毒物質的箇人年風險按大小排列為Hg〉Pb〉Mn〉Fe,但前者的影響遠大于後者;（2）水源地中的3種基因毒物質所緻健康危害的箇人年風險,遠遠超過瑞典環保跼、荷蘭建設和環境部推薦的最大可接受水平1.00×10^-6a^-1,且Cr（VI）的健康風險危害超過國際輻射防護委員會（ICRP）推薦的最大可接受值5.00×10^-5a^-1,應將Cr（VI）視為本區飲水的優先治理汙染物。
개소료음용수수원지중기인독물질화구체독물질소치적건강위해적풍험도계산모형,병근거아안시우성구농촌수원지수질실측자료,진행건강풍험평개여분석。결과표명：（1）기인독물질유음수도경소치건강위해적개인년풍험안대소배렬위Cr（VI）〉As〉Cd,이구체독물질적개인년풍험안대소배렬위Hg〉Pb〉Mn〉Fe,단전자적영향원대우후자;（2）수원지중적3충기인독물질소치건강위해적개인년풍험,원원초과서전배보국、하란건설화배경부추천적최대가접수수평1.00×10^-6a^-1,차Cr（VI）적건강풍험위해초과국제복사방호위원회（ICRP）추천적최대가접수치5.00×10^-5a^-1,응장Cr（VI）시위본구음수적우선치리오염물。
Mathematical models were established to assess the health risk from both gene and non-gene toxic substances in drinking water sources. Based on the data determined in Yucheng District of Ya＇an City, the health risk was assessed and analyzed. The results showed： 1. the annual personal risk of gene toxic substances via drinking water ranked as Cr（VI） 〉 As 〉 Cd, and that of non-gene toxic substances ranked as Hg 〉 Pb 〉 Mn 〉 Fe. However, the effects of former group of substances were much greater than the latter group of substances ; 2. health risk caused by three gene toxic substances in water sources were much higher than 1.00×10^-6a^-1, the maximal acceptable level recommended by Sweden Bureau of Environmental Protection and Holland Ministry of Construction ＆ Environmental Protection. Additionally, the personal health risk caused by Cr （VI） was higher than 5.00×10^-5a^-1, the maximal acceptable level recommended by ICRP. Therefore Cr（VI） should have the priority to be treated as a pollutant in drinking water in this area.
