CAJ | 학술논문

通过对湘江株洲段6个监测断面左右两岸共32个底泥样品重金属Pb，Zn，Cd，As，Hg和Cr质量比进行分析研究，并进行潜在生态风险评价。结果表明：霞湾断面是重金属富集最严重的断面；Cd，Hg和As的含量均超过GB15618—1995三级标准和长沙-湘潭-株洲3市土壤背景值；重金属含量大部分分布特征为右岸高于左岸；从重金属污染的潜在生态风险看，湘江株洲段各监测断面潜在生态风险都很高；各重金属元素对生态风险影响程度从大到小的顺序为：Hg〉Cd〉As〉Pb〉Zn〉Cr。
통과대상강주주단6개감측단면좌우량안공32개저니양품중금속Pb，Zn，Cd，As，Hg화Cr질량비진행분석연구，병진행잠재생태풍험평개。결과표명：하만단면시중금속부집최엄중적단면；Cd，Hg화As적함량균초과GB15618—1995삼급표준화장사-상담-주주3시토양배경치；중금속함량대부분분포특정위우안고우좌안；종중금속오염적잠재생태풍험간，상강주주단각감측단면잠재생태풍험도흔고；각중금속원소대생태풍험영향정도종대도소적순서위：Hg〉Cd〉As〉Pb〉Zn〉Cr。
The contents of heavy metals including Pb, Zn, Cd, As, Hg and Cr in 32 sediment samples collected from the both banks of Zhuzhou section of Xiang River were analyzed, and the potential ecological risk was evaluated. It is concluded that Xiawan section concentrates the heavy metal most, where the contents of Cd, Hg and As exceeded the three standard GB15618-1995 and the background level of soils in the cities of Changsha, Xiangtan and Zhuzhou. The heavy metals distributes as the right bank higher than the left bank. The potential ecological risk of heavy metals are very high at all the monitoring spots in Zhuzhou Section of Xiang River. The influence degrees of potential ecological risk of heavy metals rank as Hg 〉 Cd 〉 As 〉 Pb 〉 Zn 〉 Cr.