放射性物質の食品健康影響評価

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タイトル別名
  • Risk Assessment of Radioactive Nuclides in Foods
  • ホウシャセイ ブッシツ ノ ショクヒン ケンコウ エイキョウ ヒョウカ

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説明

Regarding radioactive contamination of food associated with the accident at Fukushima Dai-ichi Nuclear Power Station, Food Safety Commission of Japan (FSCJ) conducted "risk assessment of radioactive nuclides in foods".<BR>Epidemiological data have various limitations, by fully recognizing those limitations, FSCJ conducted its own investigation based on available publications.<BR>The publications were classified from various viewpoints such as the validity of study design and study subject population, existence or non-existence of statistically significant difference, appropriateness of estimated exposure amount, the influence of the confounding factors, and the presence of uncertainty referred by the author in order to identify its applicability for this assessment.<BR>Based on researches, in regards to the assessment of the effect of food on health, FSCJ concludes that more than around 100 mSv of the extra cumulative effective doses:cumulative effective doses of radiation during lifetime, could increase the risk of effect on health. The amount does not include radiation from natural environment and medical exposure.<BR>During childhood people are considerably more susceptible to radiation than adults, posing a possibility to develop thyroid cancer and leukemia.<BR>Some epidemiological researches indicate the health effects from radiation doses at below 100 mSv, however data reliability of those researches remains uncertain.<BR>There is an undeniable possibility that health effect from low radiation doses has not been validated by epidemiological research considering various factors. Therefore, health effects from the extra cumulative exposure below 100 mSv are difficult to be verified based on the current available knowledge.

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