深圳湾水域中重金属在不同相间的分布特征  

Distribution of heavy metals among various phases in Shenzhen Bay

作　　者：刘文新[1] 李向东[2] 

机构地区：[1]环境水化学国家重点实验室中国科学院生态环境研究中心,北京100085 [2]香港理工大学土木与结构工程系

出　　处：《环境科学学报》2002年第3期305-309,共5页Acta Scientiae Circumstantiae

基　　金：国家自然科学基金重点项目 (No .2 0 0 370 10 ) ;香港研究基金委员会资助 (香港理工大学 5 0 75 99E

摘　　要：在深圳湾水域采集沉积物、上覆水和悬浮颗粒物样品开展重金属污染研究 .结果表明 ,表层沉积物中金属浓度呈上升趋势 ,尤其是锌 .湾内沉积物中锌、镉、钴和镍的可交换态比例明显高于湾外 ,体现了沿岸污染径流输入的影响 .悬浮颗粒物与表层沉积物之间的物质交换和再分配导致两相间金属浓度显著相关 .从湾内向湾外 ,铜、镍。Sediment cores, suspended particles and overlying water were sampled in Shenzhen Bay. The results showed that metal concentrations elevated in the surface sediments, especially for Zn. The proportions of exchangeable Zn, Cd, Co and Ni in the inner bay were higher than in the outer bay, indicating the impacts of pollutant input along the bank. Material exchange and redistribution between suspended particles and surface sediments led to a significant correlation of metal concentrations at each sampling site. The spatial gradients of Cu, Ni and Zn concentrations in different phases exhibited similar variation patterns.

关 键 词：水域 分布特征 湾口沉积物 上覆水 悬浮颗粒物 重金属 深圳湾 水质监测 

分 类 号：X832[环境科学与工程—环境工程]