厦门西海域拟疏浚沉积物中重金属含量及潜在生态危害评价  

Concentrations of heavy metals in sediments of dredged materials from Xiamen Western Harbor and assessment of potential ecological risk

作　　者：叶歆[1] 景有海[1] 余新田[2] 梁榕源[2] 张珞平[1] 

机构地区：[1]厦门大学环境科学研究中心,福建厦门361005 [2]厦门市环境监测中心站,福建厦门361004

出　　处：《台湾海峡》2006年第2期202-208,共7页Journal of Oceanography In Taiwan Strait

基　　金：福建省2004年科技重点项目(2004I001)

摘　　要：报道了厦门西海域拟疏浚沉积物中的重金属含量水平及分布,并对其污染状况进行了潜在生态危害评价,为进一步开展疏浚物去污染技术研究提供了科学依据.研究结果表明:与其他海域的相比,马銮湾及其湾口外、筼筜湖的Cd、Hg、Cr、Zn含量较高.综合来看,厦门西海域拟疏浚沉积物重金属含量不很高(RI<150),属于轻微生态危害.但东渡码头外的X4站、马銮湾M2站沉积物中的Cd,及马銮湾M2站和筼筜湖Y2站沉积物中的Hg含量(40≤Er<80)都达到中等生态危害程度.Sediment samples were collected from dredging areas of Xiamen Western Harbor, and analyzed to determine the concentration and distribution of heavy metals. Results showed that the level of heavy metals in the sediments of dredging area were low, but Cd, Hg, Cr,Zn from Maluan Bay and Yuandang Lake were a little higher. Here a potential ecological risk index was used to assess the pollution effect of heavy metals. It indicated that for most heavy, metals the ecological risk is light . Potential ecological risk of Cd from Dongdu Wharf （ X4 ） and Maluan Bay （ M2 ） , Hg from Maluan Bay （M2） and Yuandang Lake（Y2） are in the middle level.

关 键 词：疏浚沉积物 重金属 生态危害 厦门西海域 

分 类 号：P743[天文地球—海洋科学]