钦州港红树林湿地沉积物重金属含量研究  

Heavy Metal Content Studies in Sediments of Qinzhou Port Mangrove Wetlands

作　　者：李丽琳 莫莉萍[2,3] 陆媛[2] 

机构地区：[1]广西交通科学研究院,广西南宁530007 [2]广西师范学院资环学院,广西南宁530001 [3]北部湾环境演变与资源利用省部共建教育部重点实验室,广西南宁530001

出　　处：《西部交通科技》2014年第5期76-80,共5页Western China Communications Science & Technology

摘　　要：文章通过对钦州港仙岛公园红树林湿地的表层沉积物进行取样分析,测定其重金属、有机质的含量,并采用地质累积指数法、潜在生态危害指数法评价沉积物中重金属的综合污染效应。评价结果表明:表层沉积物的Pb属于偏中度污染,As为轻度污染,Cd、Cr、Cu、Mn、Zn的五种重金属均值属于无污染水平;各种重金属的潜在生态危害系数大小顺序为As>Pb>Cd>Mn>Cu>Cr>Zn,综合潜在生态风险处于轻微生态风险水平。Through the sampling analysis for surface sediment of mangrove wetlands in Qinzhou Port Xi- andao Park,this article determines the content of its heavy metals and organic matters,and evaluated the comprehensive pollution impact of heavy metals in the sediments by using Geoaccumulation index method and potential ecological risk index method.The evaluation results indicated that.. Pb of surface sediments is moderately polluted,As shows the light pollution,the mean value of five heavy metal（Cd, Cr,Cu,Mn,and Zn）shows no pollutiomand the order of potential ecological risk coefficient for various heavy metals is As〉 Pb〉 Cd〉 Mn〉 Cu〉 Cr〉 Zn,and the comprehensive potential ecological risk is at the slight ecological risk level.

关 键 词：钦州港 红树林 沉积物 重金属 潜在风险评价 

分 类 号：U416.16[交通运输工程—道路与铁道工程]