泉州湾海水及沉积物中邻苯二甲酸酯的分布及化学组成  

Distribution and Chemical Composition of Phthalate Esters in Seawater and Sediments in Quanzhou Bay,China

作　　者：庄婉娥[1,2] 姚文松[2] 汪厦霞[2] 黄东仁 弓振斌[1,2] 

机构地区：[1]厦门大学近海海洋环境科学国家重点实验室,福建厦门361005 [2]厦门大学海洋与环境学院 [3]福建省海洋环境与渔业资源监测中心

出　　处：《环境与健康杂志》2011年第10期898-902,共5页Journal of Environment and Health

基　　金：海洋公益性行业科研专项(200705029)

摘　　要：目的探讨泉州湾海水及沉积物中邻苯二甲酸酯(phthalate esters,PAEs)的含量分布、化学组成及环境意义。方法于2009年3月采集泉州湾表层海水(n=12)和沉积物(n=20)样品,采用气相色谱-质谱(GC-MS)联用技术对13种邻苯二甲酸酯(PAEs)进行定性、定量分析。结果泉州湾表层海水中13种邻苯二甲酸酯的总含量(∑PAEs)在18.77～191.51 ng/L之间,平均值为82.28 ng/L,邻苯二甲酸二异丁酯(DiBP)、邻苯二甲酸二乙酯(DEP)和邻苯二甲酸二(2-乙基己基)酯(DEHP)为主要成分,占∑PAEs含量的71.15%;表层沉积物中∑PAEs在171.50～1 435.61μg/kg之间,平均值为467.38μg/kg,DEHP、DiBP和邻苯二甲酸二丁酯(DnBP)为主要成分,占∑PAEs含量的99.02%。∑PAEs含量在湾内呈南岸高于北岸、内湾大于外湾、随与岸距离增加而降低的趋势。主成分分析结果表明,PAEs的来源和理化性质可能是控制泉州湾沉积相中PAEs的主要因素。结论泉州湾海水及沉积物中含一定量的PAEs,与其他地区比较,表层海水的PAEs含量较低,而沉积物中PAEs含量处于中等偏低水平。Objective To study the distribution,chemical composition of phthalate esters in seawater and sediments in Quanzhou Bay,China and the significance in environmental science. Methods Gas chromatography-mass spectrometry （GC- MS） was applied to analyze 13 kinds of phthalate esters （PAEs） in the surface seawater samples（n=12） and sediment samples（n= 20） in Quanzhou Bay,China,in the cruises of March 2009. Results The total concentration of 13 kinds of PEAs （∑ PAEs） in surface seawater was in the range of 18.77-191.51 ng/L,with an average of 82.28 ng/L. DiBP,DEP and DEHP were dominating PAEs in surface seawater,which accounted for 71.15% of ∑ PAEs. In the surface sediments,the ∑ PAEs was in the range of 171.50-1 435.61μg/g,with an average of 467.38 μg/g. The dominated species of PAEs in sediments were DEHP,DiBP and DnBP,whieh aecounted for 99.02% of ∑ PAEs. The concentrations of PAEs in the sediments of the Bay were higher in south bank than those in north bank,and higher in inner bay than those in outer bay as well. The results of principal component analysis （PCA） showed that pollution source and physicochemieal properties should have important effeets on the concentration of PAEs in sediments. Conclusion There are PAEs in the seawater and the sediment in Quanzhou Bay,China. Compared with the eoncentration of PAEs in other regions in the world,the concentrations of PAEs in seawater in Quanzhou Bay is lower.

关 键 词：水 邻苯二甲酸酯 泉州湾 

分 类 号：R123.2[医药卫生—环境卫生学]