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直链烷基苯磺酸盐在模拟水生态系统中转化和归宿的研究
引用本文:谭谕云,张甬元,陈军建.直链烷基苯磺酸盐在模拟水生态系统中转化和归宿的研究[J].环境科学学报,1990,10(3):325-332.
作者姓名:谭谕云  张甬元  陈军建
作者单位:中国科学院水生生物研究所 武汉 (谭谕云,张甬元),中国科学院水生生物研究所 武汉(陈军建)
基金项目:中国科学院基金资助课题
摘    要:用~(14)C标记直链烷基苯磺酸盐,(~(14)C-LAS),研究了在由塘泥、水草、鱼、螺蛳和溞构成的室内模拟水生态系统中,LAS的降解规律、在水生生物体内的积累分布及其与在水中降解之间的相互关系.

关 键 词:水生态系统  LAS  归宿  积累
收稿时间:1988/7/26 0:00:00

LABORATORY MODEL ECOSYSTEM OF TRANSFORMATION AND FATE OF 14C-LABELLED LINEAR ALKYLBENZENE SULFONATES
Tan Yuyun,Zhang Yongyuan and Chen Junjian.LABORATORY MODEL ECOSYSTEM OF TRANSFORMATION AND FATE OF 14C-LABELLED LINEAR ALKYLBENZENE SULFONATES[J].Acta Scientiae Circumstantiae,1990,10(3):325-332.
Authors:Tan Yuyun  Zhang Yongyuan and Chen Junjian
Institution:Institute of Hydrobiology, Academia Sinica, Wuhan,Institute of Hydrobiology, Academia Sinica, Wuhan and Institute of Hydrobiology, Academia Sinica, Wuhan
Abstract:A laboratory model ecosystem was established using natural pond sediment, daphnia, fish, snail and aquatic plants for investigating the degradation, accumulation and distribution of 14C-labelled linear alkylbe-nzene sulfonates (14C-LAS). 89.3% of the LAS degradated in 14 days and two peaks of the accumulation in tested organisms were observed. The first peak appeared after 48 hours of exposure and the second formed after 14 days due to the formation of the degradation products of LAS. The accumulation factors of 14C-LAS in daphnia, fish, snail and aquatic plants were 79.7,18.7, 46.1 and 11.5 respectively and the accumulation factors of the degradation products in these organisms were 244.5, 165.2, 116.8 and 356.9 respectively. A high 14C-radioactivity was detected in aquatic plants, especially in Spirogyra, after 30 days exposure and it might related to the assimilation of 14CO2 which was the final degradation product of 14C-LAS.
Keywords:LAS  aquatic ecosystem  degradation  accumulation  ~(14)C  
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