江汉大学学报(自然科学版) ›› 2015, Vol. 43 ›› Issue (5): 471-476.doi: 10.16389/j.cnki.cn42-1737/n.2015.05.018

• 环境与土壤科学 • 上一篇    下一篇

2014年茅尾海海水及表层沉积物中6种重金属污染及评价

李素霞1,2,3,韦司棋4,林俊良1,2,3,王道波1,2,3   

  1. 1. 广西北部湾海洋生物多样性养护重点实验室,广西 钦州 535000;2. 北部湾海洋生物资源开发与保护重点实验室,广西 钦州 535000;3. 钦州学院 资源与环境学院,广西 钦州 535000;4. 安徽海峰分析测试科技有限公司,安徽 合肥 230000
  • 出版日期:2015-10-28 发布日期:2015-11-02
  • 作者简介:李素霞(1976—),女,副教授,硕士,研究方向:海洋及海岸带生态风险研究。
  • 基金资助:
    广西北部湾海洋生物多样性养护重点实验室、北部湾海洋生物资源开发与保护重点实验室联合资助项目(2015ZC05;2015ZD02);广西省教育厅高校科学技术研究项目(KY2015LX514)

Pollution Evaluation of Heavy Metals in Sea Water and Surface Sediments in Maowei Sea

LI Suxia1,2,3,WEI Siqi4,LIN Junliang1,2,3,WANG Daobo1,2,3   

  1. 1. Guangxi Key Laboratory of Beibu Gulf Marine Biodiversity Conservation,Qinzhou 535000,Guangxi,China;2. Key Laboratory of Exploitation and Protection of Beibu Gulf Marine Biological Resources,Qinzhou 535000,Guangxi,China;3. College of Resources and Enviroment of Qinzhou University,Qinzhou 535000,Guangxi,China;4. Anhui Haifeng Analysis Testing Technology Co.,Ltd.,Hefei 230000,Anhui,China
  • Online:2015-10-28 Published:2015-11-02

摘要: 采集了广西钦州茅尾海12个海水样品和对应的海洋表层沉积物样品,分析了茅尾海海水及表层沉积物中Cu、Pb、Zn、Cd、Hg、As 的含量,并利用单因子污染指数评价了海水及沉积物在该区的污染程度及利用地积累指数法评价了该区表层沉积物的重金属污染程度。结果表明:海水中Cu、Pb、Zn、Cd、Hg、As 平均含量均符合海渔业水质标准,但是Cu、Pb、Zn、Hg平均含量均超出第一类海洋水质标准,且Cu、Pb、Zn、Hg有超标现象。表层沉积物重金属平均污染指数均小于1,均符合一类标准,但是重金属元素Cu、Pb、Zn、Cd、As有超标现象。Pb、Zn、As的地积累指数均较小,Cu、Cd、Hg的地积累指数略大,污染多在钦江和大榄江的入海口附近。

关键词: 茅尾海, 重金属, 污染评价, 沉积物

Abstract: The author collected 12 seawater samples and the corresponding marine surface sediments samples from Maowei Sea. The heavy metals content such as Cu,Pb,Zn,Cd,Hg,As in seawater and surface sediments were determined. The index of single factor and geo-accumulation were used to assess heavy metals pollution. The results showed the average concentration of Cu,Pb,Zn,Cd,Hg,As were up to the second-class seawater quality standard and water puality standard for fisheries. But the average concentration of Cu,Pb,Zn,Hg were higher than the first-class seawater quality standard and Cu,Pb,Zn,Hg have exceeded the standard. The average pollution level of heavy metals were lower than 1 from the surface sediments,but the heavy metal Cu,Pb,Zn,Cd,As have exceeded the standard. The geoaccumulation index of Pb,Zn,As were smaller,and the geo-accumulation Index of Cu,Cd,Hg were larger. Pollution sites were found nearby Qin River and Tai Lam River estuary.

Key words: Maowei Sea, heavy metals, pollution assessment, sediments

中图分类号: