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Effect of linear alkyl benzene sulfonates (LAS) on the fate of phenanthrene in a model ecosystem (water-lava-plant-air)
Abstract： Advanced closed chamber system was used to study the fate of phenanthrene (3-rings PAHs) in the presence of linear alkylbenzene sulphonates(LAS). The results showed mineralization and metabolism of phenanthrene are fast in the "culture solution - lava - plant - air" model ecological system. The distribution proportions of applied 14C-activity in this simulative ecological system were 41%-45%, 14% to 10% and 1% in plant, lava and culture solution respectively, and 18% to 29%, 11% to 8% recovered in the forms of VOCs and CO2. Main parts of the applied 14C-activity exist in two forms, one is polar metabolites(25%) which mainly distribute in the root(23%), the other is unextractable part(23%) which have been constructed into plant root(8.98%), shoot(0.53%) or bonded to lava(13.2%). The main metabolites of phenanthrene were polar compounds(25% of applied 14C-activity), and small portion of 14C-activity was identified as non-polar metabolites(6% of applied 14C-activity) and apparent phenanthrene(1.91% of applied 14C-activity). Phenanthrene and its metabolites can be taken up through plant roots and translocated to plant shoots. The presence of LAS significantly increased the the concentration of 14C-activity in the plant and production of 200 mg/L 作 者： JIANG Xia JIN Xiang-can YAN Chang-zhou Ayfer Yediler OU Zi-Qing Antonius KETTRUP 作者单位： JIANG Xia,JIN Xiang-can,YAN Chang-zhou(Chinese Research Academy of Environmental Science, Beijing 100012, China.)Ayfer Yediler,Antonius KETTRUP(GSF-National Research Center for Environment and Health, Institute of Ecological Chemistry, Ingolst?dter Landstrae 1, 85764, Neuherberg, Germany;)
OU Zi-Qing(Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110015, China)
期 刊： 环境科学学报(英文版) ISTICSCI Journal： JOURNAL OF ENVIRONMENTAL SCIENCES 年，卷(期)： 2004, 16(3) 分类号： X131【Effect of linear alkyl benzene sulfo】相关文章：