Suzuki M, Yamato Y, Watanabe T
Pestic Monit J. 1976 Sep;10(2):35-40.
The residue levels of organochlorine insecticides BHC, DDT, endrin, and dieldrin in the Kitakyushu District, Japan, were monitored from 1971 to 1974. Agricultural uses of these insecticides were banned in 1970. BHC isomers, alpha, beta, gamma, and delta-BHC were detected in all vegetable samples taken; beta-BHC residue appeared in the highest levels. The proportions of each BHC isomer in total BHC residues were much different from those in the technical product. Average residue levels of alpha, beta, gamma, and delta-BHC, dieldrin, endrin, and DDTR (p,p'-DDE+p,p'-TDE+o,p'-DDT) in 1971 were 0.007, 0.042, 0.010, 0.008, 0.021, 0.010, and 0.041 ppm in radishes, and 0.004, 0.007, 0.009, 0.003, 0.087, 0.031, and 0.009 ppm in cucumbers. Levels found in 1974 were 0.002, 0.003, less than 0.001, less than 0.001, 0.005, 0.006, and less than 0.001 ppm in radishes, and less than 0.001, 0.001, 0.001, less than 0.001, 0.008, 0.009, and undetectable in cucumbers. These residues were translocated form the insecticide-contaminated field soils to the vegetables through therir roots. Residue levels of dieldrin and endrin frequently exceeded the pesticide tolerance limits of Japan, but DDTR residues were only slightly above the specified levels.
1971年至1974年期间，对日本北九州市有机氯杀虫剂六六六、滴滴涕、异狄氏剂和狄氏剂的残留水平进行了监测。这些杀虫剂在1970年被禁止用于农业。在所采集的所有蔬菜样本中均检测到六六六的异构体α-六六六、β-六六六、γ-六六六和δ-六六六；β-六六六的残留量最高。每种六六六异构体在六六六总残留量中的比例与工业产品中的比例有很大不同。1971年，萝卜中α-六六六、β-六六六、γ-六六六、δ-六六六、狄氏剂、异狄氏剂和滴滴涕残留（p,p'-二氯二苯醚+p,p'-三氯二苯醚+o,p'-滴滴涕）的平均残留水平分别为0.007、0.042、0.010、0.008、0.021、0.010和0.041 ppm，黄瓜中的平均残留水平分别为0.004、0.007、0.009、0.003、0.087、0.031和0.009 ppm。1974年在萝卜中检测到的含量分别为0.002、0.003、低于0.001、低于0.001、0.005、0.006和低于0.001 ppm，在黄瓜中检测到的含量分别为低于0.001、0.001、0.001、低于0.001、0.008、0.009且未检出。这些残留物通过根部从受杀虫剂污染的田间土壤转移到蔬菜中。狄氏剂和异狄氏剂的残留水平经常超过日本的农药耐受限度，但滴滴涕残留仅略高于规定水平。
