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FATE OF 2 PHENYLBENZOYLUREA INSECTICIDES IN AN ALGAE CULTURE SYSTEM (SCENEDESMUS-SUBSPICATUS)
Tan Yu-yun; W. Thumm; M. Jobelius-Korte; A. Attar; D. Freitag and A. Kettrup; TAN, YY, ACAD SINICA,INST HYDROBIOL,WUHAN,PEOPLES R CHINA
1993
Source PublicationCHEMOSPHERE
Volume26Issue:5Pages:955-962
AbstractThe bioaccumulation, elimination and degradation of C-14-labelled diflubenzuron (DFB) and of 1-(2-chlorobenzoyl)-3-(4-chlorophenyl)urea (CCU) was studied in a laboratory algae culture system of scenedesmus subspicatus. Algae were exposed at an initial concentration of 200 mug/l for seven days. Neither substance had an inhibitory effect on the growth of algae. The half life of DFB and CCU was 3 and 1 days, respectively, as measured by HPLC. The distribution of C-14 between medium and algae was measured. In the case of DFB radioactivity in algae increased steadily and levelled off at approximately 60 % after 5 days. Due to algae growth BCF values decreased from 4310 to 889 for DFB and from 6719 to 304 for CCU during the exposure period. The relationship between algae density and bioconcentration could be correlated by an adsorption isotherm. Elimination of both compounds was rapid during the first hours.
KeywordAlgae Diflubenzuron 1-(2-chlorobenzoyl)-3-(4-chlorophenyl)Urea Accumulation Elimination Degradation
DepartmentGSF MUNICH,ENVIRONM & HLTH RES CTR,INST ECOL CHEM,W-8042 NEUHERBERG,GERMANY
Subject AreaEnvironmental Sciences
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/10330
Collection期刊论文
Corresponding AuthorTAN, YY, ACAD SINICA,INST HYDROBIOL,WUHAN,PEOPLES R CHINA
Recommended Citation
GB/T 7714
Tan Yu-yun,W. Thumm,M. Jobelius-Korte,et al. FATE OF 2 PHENYLBENZOYLUREA INSECTICIDES IN AN ALGAE CULTURE SYSTEM (SCENEDESMUS-SUBSPICATUS)[J]. CHEMOSPHERE,1993,26(5):955-962.
APA Tan Yu-yun,W. Thumm,M. Jobelius-Korte,A. Attar,D. Freitag and A. Kettrup,&TAN, YY, ACAD SINICA,INST HYDROBIOL,WUHAN,PEOPLES R CHINA.(1993).FATE OF 2 PHENYLBENZOYLUREA INSECTICIDES IN AN ALGAE CULTURE SYSTEM (SCENEDESMUS-SUBSPICATUS).CHEMOSPHERE,26(5),955-962.
MLA Tan Yu-yun,et al."FATE OF 2 PHENYLBENZOYLUREA INSECTICIDES IN AN ALGAE CULTURE SYSTEM (SCENEDESMUS-SUBSPICATUS)".CHEMOSPHERE 26.5(1993):955-962.
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