CAJ | 학술논문

为了解辽河吉林省段典型支流条子河表层沉积物重金属的污染特征，采集10个表层沉积物样品，分析了 Pb、Cu、Ni、Mn、Cd 和 Zn 6种重金属的分布特征，并应用地累积指数、沉积物质量基准和潜在生态危害指数等方法对重金属的污染水平、生态风险及来源进行了评价。结果表明：条子河表层沉积物中 Cd 存在1级轻度污染，Ni 具有较高的生物毒性发生率；Cu、Zn、Mn和 Pb 主要来自自然，Cd 和 Ni 主要来自工业；空间分布上，位于四平市城区出境断面处的表层沉积物中6种重金属的质量比最高。
위료해료하길림성단전형지류조자하표층침적물중금속적오염특정，채집10개표층침적물양품，분석료 Pb、Cu、Ni、Mn、Cd 화 Zn 6충중금속적분포특정，병응용지루적지수、침적물질량기준화잠재생태위해지수등방법대중금속적오염수평、생태풍험급래원진행료평개。결과표명：조자하표층침적물중 Cd 존재1급경도오염，Ni 구유교고적생물독성발생솔；Cu、Zn、Mn화 Pb 주요래자자연，Cd 화 Ni 주요래자공업；공간분포상，위우사평시성구출경단면처적표층침적물중6충중금속적질량비최고。
To investigate the pollution of heavy metals in surface sediments of Tiaozi River,a typical brance of Liaohe River in Ji-lin Province,the concentrations of Pb,Cu,Ni,Mn,Cd and Zn in surface sediments collected from 10 sampling sites were deter-mined.Their pollution,ecological risk and sources were evaluated using the methods of geo-accumulation index,consensus-based sediment quality guidelines and potential ecological risk index,etc.The results indicated that Cd in the sediments was slightly polluted.The potential toxicity of Ni was higher than that of the other heavy metals.According to the source identification,Cu, Zn,Mn and Pb were mainly from natural sources,whereas Cd and Ni were mainly from industrial sources.The distribution char-acteristics of heavy metals in the sediments were similar and all the highest contents of six heavy metals in the sediments were col-lected at the leave-boundary section of Siping downtown.