Influence of biotic and abiotic factors on dissipating metalaxyl in soil

被引：47
|
作者：
Sukul, P [1 ]
Spiteller, M [1 ]
机构：
[1] Univ Dortmund, Inst Environm Res, D-44221 Dortmund, Germany
来源：
CHEMOSPHERE | 2001年 / 45卷 / 6-7期
关键词：
biodegradation; metalaxyl; photodegradation; soil; sorption;
D O I：
10.1016/S0045-6535(01)00010-8
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Under laboratory condition, dissipation of metalaxyl in sterile and non-sterile soils, its sorption behaviour and fate in presence of light have been studied. The half-life value of metalaxyl was found in the range of 36-73 d in non-sterile soil. 5.3-14.7% dissipation was observed due to abiotic factors other than light. Metalaxyl was found photostable in soil showing half-life of 188-502 h under simulated sunlight. In adsorption study, a non-linear relationship between concentration of metalaxyl and its adsorption into soils was observed. Estimated k(OC) value increased as organic carbon content decreased. Adsorption and desorption k(D) values ranged between 53.5 and 151.1. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：941 / 947
页数：7
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