Dieldrin Residue in the Soil and Cucumber from Agricultural Field in Tokyo
Dieldrin Residue in the Soil and Cucumber from Agricultural Field in Tokyo
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东京农田土壤和黄瓜中狄氏剂残留
DOI：
10.1584/jpestics.30.397
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发表时间：
2005
影响因子：
2.4
通讯作者：
Yoshiko Hashimoto
中科院分区：
文献类型：
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作者：
Yoshiko Hashimoto
2002年从东京814个农场采集了土壤样本。在85个土壤样本中检测到狄氏剂残留，浓度从0.01 ppm到2.6 ppm不等。70%的狄氏剂阳性样品中狄氏剂残留量为0.1 ppm或更少。在东京种植的黄瓜中狄氏剂残留浓度超过容许水平（0.02 ppm），330个样品中有12个样品的狄氏剂残留浓度在0.02 ppm至0.1 ppm之间。土壤中狄氏剂的水平分布不均匀，范围在0.01 ~ 0.73ppm之间。狄氏剂的垂直分布也不一致。在深耕的田地中，狄氏剂的垂直分布是从地表到70厘米深，但在未耕的田地中，狄氏剂在30厘米深处被检测到。由于黄瓜根系在水平和垂直方向上生长约1米，我们需要分析1米深的土壤样品，以防止狄氏剂残留污染黄瓜。日本农药学会（Pesticide Science Society of Japan）
Soil samples were obtained from 814 farms in Tokyo in 2002. Dieldrin residue was detected in 85 soil samples at concentrations ranging from 0.01 ppm to 2.6 ppm. The residual amount in 70% of dieldrin-positive samples was 0.1 ppm or less. Concentrations of dieldrin residue in cucumbers cultivated in Tokyo exceeded the tolerable level (0.02 ppm) and ranged from 0.02 ppm to 0.1 ppm in 12 of 330 samples. The horizontal distribution of dieldrin in fields was not uniform and the range varied from the quantitative limit (0.01 ppm) to 0.73 ppm. The vertical distribution of dieldrin was also inconsistent. With deeply plowed fields, the vertical distribution was from the surface to a depth of 70 cm, although dieldrin was detected at 30 cm in fields that had not been plowed. As the cucumber roots grew about 1 m in the horizontal and vertical directions, we need to analyze soil samples to a depth of 1 m to prevent dieldrin residue from contaminating cucumbers. © Pesticide Science Society of Japan