牛乳のBHC汚染原因の検索 (残留農薬の衛生学的研究-1,2-)

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概要

• 論文の詳細を見る

• Residues in organochlorine pesticides in milk pose a public hazard problem (particularly BHC isomers in Japan).In the present study, milk, various cow fodders, soil and tissues from cows were collected from farms and residual BHC isomers were determined by means of gas chromatography to indicate from which fodders the BHC residues in milk resulted. It was also discussed how these contents would change in the near future.Conclusions are as follows;1: Rice straw contains 77% of the total BHC (95% of β-isomer) the daily intake of a cow. It is evident that residues in milk can be attributed to this straw.2. BHC residues in rice straw are not primarily due to absorption from soil but due to attachment at the moment of dispersion. At present, amounts of BHC residues in the soil of rice fields have decreased as use of BHC is no longer permitted. For this reason, next season's rice straw may not be highly contaminated with residues.3. From the amount of excreted β-BHC in milk, the β-isomer ingested daily by a cow is excreted to a great extent in the milk. It is also presumed that the accumulated isomer in the body decreases rapidly as the isomer intake decreases.

• 日本衛生学会の論文

著者

• 鎌田 俊彦

  広島大学医学部

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• 牛乳のBHC汚染原因の検索 (残留農薬の衛生学的研究-1,2-)
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