Monitoring drift of fenitrothion MC, following application by a radio-controlled helicopter on pine trees in Akita prefecture

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  • Ichikawa Yujiro
    Laboratory of Pesticide Toxicology, Graduate school of Horticulture, Chiba University
  • Sasaki Midori
    Laboratory of Pesticide Toxicology, Graduate school of Horticulture, Chiba University
  • Tabata Katsuhiro
    Gifu Academy of Forest Science and Culture
  • Motoyama Naoki
    Laboratory of Pesticide Toxicology, Graduate school of Horticulture, Chiba University

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Other Title
  • 秋田県潟上市天王浜山地区で無人ヘリコプターにて松林に散布されたフェニトロチオンMCの飛散状況
  • アキタケン カタガミシ テンノウ ハマヤマ チク デ ムジン ヘリコプター ニテ マツバヤシ ニ サンプサレタ フェニトロチオン MC ノ ヒサン ジョウキョウ

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The present study monitored spray drift, deposition and residues on branches and leaves of pine trees over time after Sumipine MC® was applied by a radio-controlled helicopter over pine trees at Katagami-shi Tenno, Hamayama-chiku, Akita prefecture in 2006. As bio-monitoring of the spray drift, the mortality of the housefly in various locations was also observed. Fenitrothion in the atmosphere was trapped at several locations within and around the sprayed area using a Sep-Pak PS-Air cartridge, which was placed horizontally at heights of 15, 8 and 1.5 m above the ground. All atmospheric fenitrothion detected was below the permissible limit of 10 μg/m3, except within the sprayed area. These results imply that the Sumipine MC® spray poses little health risk to neighboring inhabitants.

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