CAJ | 학술논문

城市化和工业化进程给城市湖泊带来了很高的重金属污染负荷.为研究湖泊重金属污染的来源以及人类活动对湖泊重金属污染的影响,以武汉郭郑湖为例,测定了沉积物中几种常见痕量重金属元素Co、Cr、Pb、Cu、Zn、Ni的含量,并采用地累积指数法和归一化法对重金属污染物的污染程度和污染来源进行了分析.研究结果表明,溢流排污口处沉积物重金属污染程度较高,Zn、Cu和Pb的污染程度高于Co、Cr、Ni,为湖泊主要污染物.归一化法分析表明:Zn、Pb、Cu之间呈显著相关,均以人类活动输入为主要来源.在溢流排污口处Ni和Cr受人类活动影响较轻微,Co以自然来源为主;在湖心处Ni、Cr、Co均以自然来源为主.以上结果表明,对郭郑湖的治理应以Zn、Pb、Cu为主.
성시화화공업화진정급성시호박대래료흔고적중금속오염부하.위연구호박중금속오염적래원이급인류활동대호박중금속오염적영향,이무한곽정호위례,측정료침적물중궤충상견흔량중금속원소Co、Cr、Pb、Cu、Zn、Ni적함량,병채용지루적지수법화귀일화법대중금속오염물적오염정도화오염래원진행료분석.연구결과표명,일류배오구처침적물중금속오염정도교고,Zn、Cu화Pb적오염정도고우Co、Cr、Ni,위호박주요오염물.귀일화법분석표명:Zn、Pb、Cu지간정현저상관,균이인류활동수입위주요래원.재일류배오구처Ni화Cr수인류활동영향교경미,Co이자연래원위주;재호심처Ni、Cr、Co균이자연래원위주.이상결과표명,대곽정호적치리응이Zn、Pb、Cu위주.
The urbanization and industrialization process had caused high loads of heavy metals to the urban lakes. In order to study the sources of heavy metal pollutions and the impact of anthropogenic activities in an urban lake-Guozhen Lake in Wuhan, the contents of 6 trace heavy metals such as Co, Cr, Pb, Cu, Zn, Ni were determined. By using the index of geoaccumulation and normalization method, two sediment cores from the Lake were analyzed and their pollution degree and source were studied. Results show that high pollution extent of heavy metal was found at the sewage draining exit of the overflow. Zn, Pb, Cu are the dominating contaminative elements in the Lake which pollution degree are higher than Co, Cr, Ni. Normalization method analysis of heavy metal contents shows that Zn, Pb, Cu are positively correlated with each other, and seriously contaminated by human pollution. At the sewage draining exit of the overflow, Ni and Cr are partly contaminated by humans, while Co is from natural source. In the center of the Lake, all of Ni, Cr and Co are from natural source. The data shows that controlling the heavy metal pollutions of the Lake should give first place to Zn, Pb and Cu.