CAJ | 학술논문

对辽河流域水库饮用水源地水样中重金属元素（Cr ，As ，Cd ，Cu ，Zn和Pb）浓度进行了调查研究，并采用美国环保署推荐的健康风险评价模型对水库中重金属污染做了初步的健康风险评价。结果表明，辽河流域5个水库中6种重金属元素Cr ，Cu ，Zn ，As ，Cd和Pb的平均浓度分别为3.36，1.03，2.70，1.23，0.02，0.03μg · L -1，均未超过国家生活饮用水卫生标准（GB 5749-2006）。健康风险评价结果表明，研究区域的金属致癌风险较高，致癌重金属的健康风险大小依次为Cr＞As＞Cd。其中，水库中Cr元素致癌风险最高，成人和儿童分别为4.50×10-5～7.53×10-5和6.29×10-5～1.05×10-4 a-1。非致癌重金属引起的健康风险值为10-13～10-10 a-1，均在国际辐射防护委员会（ICRP）所规定的可接受范围内，健康风险大小为Cu＞Zn＞Pb。重金属总健康风险成人为1.07×10-4～1.72×10-4 a-1，儿童为1.49×10-4～2.40×10-4 a-1，均超过ICRP推荐的5×10-5 a-1。辽河流域饮用水源地致癌重金属的风险明显高于非致癌重金属。
대료하류역수고음용수원지수양중중금속원소（Cr ，As ，Cd ，Cu ，Zn화Pb）농도진행료조사연구，병채용미국배보서추천적건강풍험평개모형대수고중중금속오염주료초보적건강풍험평개。결과표명，료하류역5개수고중6충중금속원소Cr ，Cu ，Zn ，As ，Cd화Pb적평균농도분별위3.36，1.03，2.70，1.23，0.02，0.03μg · L -1，균미초과국가생활음용수위생표준（GB 5749-2006）。건강풍험평개결과표명，연구구역적금속치암풍험교고，치암중금속적건강풍험대소의차위Cr＞As＞Cd。기중，수고중Cr원소치암풍험최고，성인화인동분별위4.50×10-5～7.53×10-5화6.29×10-5～1.05×10-4 a-1。비치암중금속인기적건강풍험치위10-13～10-10 a-1，균재국제복사방호위원회（ICRP）소규정적가접수범위내，건강풍험대소위Cu＞Zn＞Pb。중금속총건강풍험성인위1.07×10-4～1.72×10-4 a-1，인동위1.49×10-4～2.40×10-4 a-1，균초과ICRP추천적5×10-5 a-1。료하류역음용수원지치암중금속적풍험명현고우비치암중금속。
The six heavy metal concentrations (Cr ,Cr ,As ,Cd ,Cu ,Zn and Pb) in water samples collected from five reservoirs of Liao River Basin were studied .The health risk assessment for heavy metals pollution in reservoirs was conducted based on the environmental health risk assessment model recommended by U .S .Environmental Protection Agency .The results showed that the average concentrations of Cr ,Cu ,Zn ,As ,Cd and Pb in five reservoirs of Liao River Basin were 3.36 ,1.03 ,2.70 ,1.23 , 0.02 and 0.03 μg · L -1 ,respectively .In fact ,these heavy metals concentrations were obviously lower than the Standard of Na-tional Drinking Water in China (GB 5749-2006) .The results also showed that the metal carcinogenic risk was relatively high in this region .The order of the risk level of carcinogenic metals was Cr>As>Cd .The highest carcinogenic risk was from Cr ,with the risk for adults ranging from 4.50 × 10-5 ~7.53 × 10-5 a-1 and the risk for children ranging from 6.29 × 10-5 to 1.05 × 10-4 a-1 .The health risk levels caused by non-carcinogenic metals ranging from 10-13 to 10-10 a-1 were lower than the acceptable range suggested by International Commission on Radiological Protection (ICRP) and the order of the risk level of non-carcino-genic metals was Cu>Zn>Pb .The total health risk of heavy metals for adults ranging from 1.07 × 10-4 to 1.72 × 10-4 a-1 and for children ranging from 1.49 × 10-4 to 2.40 × 10-4 a-1 exceeded the accepted level of 5 × 10-5 a-1 as suggested by ICRP .The health risk levels of carcinogenic metals were significantly higher than those of non-carcinogenic metals in the reservoirs for Liao River Basin .