期刊论文

中文

衡阳师范学院学报

1673-0313

2015

03

56-61

10.13914/j.cnki.cn43-1453/z.2015.03.013

湖南省自然科学基金资助项目（13jj9018）； “材料物理与化学”湖南省十二五重点建设学科资助项目； 功能金属有机化合物湖南省高校科技创新团队资助项目；

本校为第一机构

为了解湘江(衡阳段)底泥重金属污染程度,对流域内10个断面18个采样点的表层底泥重金属(Cu、Zn、As、Hg、Cd、Cr、Pb)进行采样,测定样品各金属含量,并分别采用潜在生态危害指数法和地累积指数法评价底泥重金属潜在生态风险和污染程度.结果表明,湘江(衡阳段)表层底泥中各点重金属平均 RI 为1009．46,总体上属于很强生态风险；地累积指数表明在松柏段面的砷、汞、镉、铅处于严重污染.

In order to explore the heavy metal (Cu,Zn,As, Hg,Cd,Cr,Pb )concentrations in the surface sedimentsthe Xiangjiang River (Hengyang section),18 sediments specimens were sampled from 10 sections of the river for analyzing heavy metals by standard method.The surface sediment pollution levels and potential ecological risk of the heavy metals were as-sessed by using the potential ecological risk index (RI)and the pollution load index (PLI).The results showed that the average RI was 1009.46 which represented a very high ecological risk.The PLI showed that the pollution deg...