期刊名称:Journal of Environmental Science and Technology
印刷版ISSN:1994-7887
电子版ISSN:2077-2181
出版年度:2009
卷号:2
期号:1
页码:12-21
DOI:10.3923/jest.2009.12.21
出版社:Asian Network for Scientific Information
摘要:We studied under microcosm conditions the degradation of endosulfan and its effect on soil microbial respiration, soil microbial population and pH evolution in three major soil type s of Burkina Faso . Results indicated that the recommended treatment dose of endosulfan (3 ÃZ¼g g-1) did not affect soil pH . But when the dose was 6 ÃZ¼g g-1, a stimulation of the respiratory activity of the soils during the first five days and a disturbance of the pH were observed. There were no significant impact of endosulfan at 3 and 6 ÃZ¼g g-1 of soil in the total bacterial number. After 5 days of incubation the degradation rate of endosulfan with initial concentration of 3 ÃZ¼g g-1 were 50, 56.5 and 83.5% in the soil from Boni, Farakoba and Kaibo, respectively. But when the initial concentration of endosulfan was 6 ÃZ¼g g-1, the figures were 94.6, 79.6 and 20.4%, respectively. Endosulfan degradation in these three soils led to a production of endosulfan-sulphate.