林丹在作物和土壤中的残留及其消解  

Residue and Degradation of Lindane in Crop and Soil

作　　者：郑永权[1] 姚建仁[1] 赵静[1] 王政国[1] 焦淑贞[1] 张维忠[2] 屈振刚[2] 张淑芳[2] 王丽辉[3] 张国光[3] 高大新[3] 韩广珠 

机构地区：[1]中国农科院植保所,北京100094 [2]河北省农科院植保所,石家庄071000 [3]天津大沽化工厂,天津300455

出　　处：《环境科学研究》1993年第6期11-16,共6页Research of Environmental Sciences

摘　　要：通过不同施药方法,探讨了林丹在小麦、玉米中的残留水平。结果表明,林丹在作物中的残留量随施药量的增加而递增。采用喷雾,4(a.i.)g/亩,林丹在小麦中的残留为0.0073ppm;土壤处理,100(a.i.)g/亩,林丹在小麦中的残留为0.0134ppm;撒颗粒剂,0.015(a.i.)g/株,林丹在玉米中的残留为0.0600ppm.林丹在土壤中消解很快,当土壤处理[200(a.i.)g/亩],林丹在土壤中的半衰期为23.7～25.2d,消解99％需160d左右。作者认为,在我国部分害虫防治中起用林丹不可能对生态环境构成威胁。The levels of lindane residue in wheat and corn were studied by various application techniques in this paper.The results showed that the rate of application was found to be a more important factor in determining the residue levels. According to the recommended application rates at 4 (a.i.) g/mu for adult stage spraying (15% EC), lindane was found at an average of 0.0073 (range of 0.0062-0.0084) ppm in wheat; at 100(a.i.)g/mu for soil surface treatment (6% Dust),lindane was found at an average of 0.0134 (range of 0.0101-0.0201) ppm in wheat, and at 0.015 (a.i.) g/plant (1% Granule) , lindane was found at an average of 0.0431 (range of 0.0296-0.0516) ppm in corn. At the extremely high rate of 200 (a.i.) g/mu for soil treatment the initial half-time of lindane was 23.7 days in Heibei province, and 25.2 days in Henan province, and there was a 99% loss within 160 days. Therefore, it can not cause a threat on ecological environment to use lindane in partial control of crop insect pest in China.

关 键 词：小麦 玉米 残留 高丙体六六六 土壤 

分 类 号：X592[环境科学与工程—环境工程]