京杭大运河(徐州段)底泥重金属形态分布与有机碳的关系研究Studies on the Relations between Morphological Distribution of Heavy Metals and Organic Carbon in Bottom Sediment in Beijing-Hangzhou Grand Canal(Xuzhou Section)
李功振;韩宝平;葛冬梅;孙燕;
摘要(Abstract)：
采用三步连续提取法,并用电感偶合等离子质谱(ICP-MS)和总有机碳测定仪(elementar Germany)对底泥中的重金属(Cu、Cd、Pb、Zn、Cr、Mn、Ni)总量和形态进行测定,研究了京杭大运河(徐州段)6个底泥样品中的重金属含量及形态分布和有机碳的关系。结果表明,Cr、Zn、Cu大部分是以残渣态形式存在,6点分别为80.0%~93.6%,52.7%~99.5%和62.7%~92.8%。Cd、Mn、Pb的醋酸可提取态含量很高,Ni的可氧化提取态含量高。相关性分析表明有机碳的含量与可氧化提取态的相关性较好。
关键词(KeyWords)： 京杭大运河;底泥;重金属形态;总有机碳
基金项目(Foundation): 高等学校博士学科点专项科研基金资助项目(20030290010)
作者(Author): 李功振;韩宝平;葛冬梅;孙燕;
Email:
DOI:
参考文献(References)：
- [1]曲久辉.我国水体复合污染与控制[J].科学对社会的影响,2000(1):36-40.
- [2]汤鸿霄.试论重金属的水环境容量[J].中国环境科学,1985,5(5):38-43.
- [3]国家环境保护总局.水和废水监测分析方法[M].4版.北京:中国环境科学出版社,2002.
- [4]金相灿.沉积物污染化学[M].北京:中国环境科学出版社,1992.
- [5]文湘华.水体沉积物重金属质量基准研究[J].环境化学,1993,12(5):334-341.
- [6]MARTIN R,SANCHEZ D M,GUTIEREZ A M.Sequential extraction of U,Th,Ce,La and some heavy metals in sediments from Otigas river[J].Spain Tlanta,1998,46:1115-1121.
- [7]NGIAM L S,LIM P E.Speciation patterns of heavy metals in tropical estuarineanoxic and oxidized sediments by different sequential extraction schemes[J].Science of the Total Environment,2001,275:53-61.
- [8]LIANG Y,WONG MH.Spatial and temporal organic and heavy metal pollutionat Mai Po Marshes Nature Reserve[J].Hong Kong Chemosphere,2003,52:1647-1658.
- [9]SERIFET,SENOL K,LATIF E.Determination of heavy metals and their speci-ation in lake sediments by flame atomic absorption spectrometry after a four-stage sequential extraction procedure[J].Analytica Chimica Acta,2000,413:33-40.
- [10]BAKAN G,BALKAS T.Enrichment of metals in the surface sediments ofSaponca Lake[J].Water Environmental Research,1999,71:71-74.
- [11]朱广伟,陈英旭,周根娣,等.运河(杭州段)沉积物中重金属分布特征及变化[J].中国环境科学,2001,21(1)65-69.