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引用本文:刘祖发,关帅,林颖妍,邓哲,丁波,查悉妮.广州市湖泊水体中防腐剂浓度及其潜在毒性风险.湖泊科学,2016,28(2):328-333. DOI:10.18307/2016.0212
LIU Zufa,GUAN Shuai,LIN Yingyan,DENG Zhe,DING Bo,ZHA Xini.Research of parabens and its potential toxicity risk in lakes of Guangzhou. J. Lake Sci.2016,28(2):328-333. DOI:10.18307/2016.0212
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广州市湖泊水体中防腐剂浓度及其潜在毒性风险
刘祖发1,2, 关帅1,2, 林颖妍1,2, 邓哲1,2, 丁波1,2, 查悉妮1,2
1.中山大学水资源与环境研究中心, 广州 510275;2.华南地区水循环与水安全广东省普通高校重点实验室, 广州 510275
摘要:
为研究广州市湖泊水体中的防腐剂及其毒性,在广州市选择15个湖泊采集水样,采用液液萃取-气质联用法对湖泊水体中的对羟基苯甲酸甲酯、对羟基苯甲酸乙酯等5种防腐剂进行浓度检测和毒性分析. 结果表明:广州市区内15个湖泊水体中均检出防腐剂,但其浓度略低于国外天然水体中的浓度,溶解相的防腐剂平均浓度为5.06 ng/L,颗粒相的平均浓度为0.78 ng/L;广州市区的湖泊水体中溶解相浓度最高的防腐剂为对羟基苯甲酸丁酯,占总量的30.45%,对羟基苯甲酸苯甲酯所占比例最小,占6.71%;以防腐剂对发光细菌光强的抑制强弱来表征其毒性的大小,对羟基苯甲酸苯甲酯的毒性最强,对广州市湖泊水体环境的影响最大.
关键词:  湖泊  防腐剂  广州  气质联用  毒性
DOI:10.18307/2016.0212
分类号:
基金项目:国家自然科学基金项目(21377170)资助.
Research of parabens and its potential toxicity risk in lakes of Guangzhou
LIU Zufa1,2, GUAN Shuai1,2, LIN Yingyan1,2, DENG Zhe1,2, DING Bo1,2, ZHA Xini1,2
1.Center for Water Resources and Environment, Sun Yat-sen University, Guangzhou 510275, P. R. China;2.Key Laboratory of Water Cycle and Water Security in Southern China of Guangdong Higher Education Institutes, Guangzhou 510275, P. R. China
Abstract:
In this study, the method of GC-MS with liquid-liquid extraction was adopted to analyze the parabens in 15 lakes of Guangzhou. The results showed that: parabens were detected from all the sampling sites while the content was not high contrasted with foreign waters. The average content of parabens in aquatic matter is 5.06 ng/L, and that in suspended particulate matter is 0.78 ng/L. Concentration of Butyl paraben is more than other parabens in water, accounted for 30.45% of the total in aquatic matter, while concentration of Benzyl paraben is the lowest, accounted for 6.71%. According to the intensity of the suppress of the luminous bacteria, we can characterize the intensity of toxicity of parabens. The results show that Benzyl paraben has the strongest toxic among the five parabens, and has the biggest impact on the environment of lakes in Guangzhou.
Key words:  Lakes  parabens  Guangzhou  GC-MS  toxicity
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