著者

板野 一臣

出版者

Osaka Urban Living and Health Association

雑誌

生活衛生 (ISSN:05824176)

巻号頁・発行日

vol.51, no.2, pp.57-65, 2007 (Released:2007-04-07)

参考文献数

63

被引用文献数

2

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Mercury is present in the environment in elemental, inorganic and organic (methylated) forms. As methylmercury bioaccumulates up the marine food chain, large predatory species such as tuna, shark and swordfish have high concentrations of methylmercury in their tissue. Almost all of the mercury in marine fish is methylmercury. As small cetaceans such as toothed whale and dolphin are long-lived and occupy the top of the marine food chain, they contain more mercury in their tissue than large predatory fish. Small cetaceans demethylate methylmercury into inorganic mercury and store it in the liver as mercury selenide. Marine seafood is one of the major sources of mercury in the human food chain.The provisional tolerable weekly intake (PTWI) for methylmercury of 3.3 μg/kg-body weight for the general population was established by the Joint FAO/WHO Expert Committee on Food Additives (JECFA) in 1972. In 1973, the Japanese Ministry of Health and Welfare set the provisional permitted levels of total mercury and methylmercury in marine food at 0.4 and 0.3 μg/wet-g, respectively. These levels were based on the PTWI of JECFA. In 2003, from the outcomes of two cohort studies in the Faroe Islands and Seychelles Islands regarding the effect of fetal methylmercury exposure on children’s development, JECFA set the PTWI of methylmercury at 1.6 μg/kg-body weight for pregnant women. In 2005, the Japanese Food Safety Commission announced a tolerable weekly intake (TWI) for methylmercury of 2.0 μg/kg-body weight for women who are or may be pregnant. The Japanese average daily intake of mercury from foods is about 60% of the TWI.

著者

板野 一臣

出版者

社団法人 大阪生活衛生協会

雑誌

生活衛生 (ISSN:05824176)

巻号頁・発行日

vol.29, no.2, pp.98-101, 1985-03-10 (Released:2010-03-11)

参考文献数

17

著者

板野 一臣 明橋 八郎

出版者

Osaka Urban Living and Health Association

雑誌

生活衛生 (ISSN:05824176)

巻号頁・発行日

vol.24, no.3, pp.93-95, 1980-06-20 (Released:2010-10-28)

参考文献数

5

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大型回遊魚のキハダとカツオおよび深海魚のカゴカマスとキングフィッシュの背肉からのシステインによる水銀除去について調べた。魚種に関係なく魚肉中の水銀は2mMシステイン溶液により50~70%除去された。カゴカマスに含まれる水銀は他の3魚種に含まれる水銀より除去され易かった。魚肉中の総水銀含有量は水銀の除去率に影響しないように思われた。メチル水銀の除去率は魚種により総水銀除去率と相違する場合もあった。

著者

板野 一臣

出版者

(社)大阪生活衛生協会

雑誌

生活衛生 (ISSN:05824176)

巻号頁・発行日

vol.32, no.1, pp.21-24, 1988-01-10 (Released:2010-03-11)

参考文献数

15