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- 小野 恭子
- 独立行政法人 産業技術総合研究所 安全科学研究部門
書誌事項
- タイトル別名
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- A method of managing the risk of cadmium (Cd) intake based on lifetime average exposure of Cd in rice
- コメ チュウ カドミウム Cd ノ ショウガイ ヘイキン バクロ ノウド オ モチイタ コメ ノ Cd ニ カンスル リスク カンリ ホウホウ
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A method of managing the risk of cadmium (Cd) intake through rice consumption was discussed. Risk was characterized by comparing the risk-based Cd reference concentration and the lifetime average oral exposure concentration of Cd (AME). AME was the arithmetic mean of a certain area (six hectares) of a paddy field for several decades. The annual variation of Cd concentration in rice is supposed to be log-normally distributed. Farmer's wives were suspected to be a high-risk subpopulation, and AME for that subpopulation was calculated. Rice that had a Cd concentration exceeding the maximum limit was eliminated because the subpopulation did not eat this rice. Thus, in case that several limits are used, AMEs can be re-calculated for rice whose Cd concentration is under the limit. Each paddy field was classified as “ <AME by no elimination of rice exceeding the maximum limit (no countermeasures needed; region 1)”, and “ <AME by elimination of exceeding the maximum limit (region 2)”. This method enables us to choose cost-effective countermeasures for each paddy field.
収録刊行物
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- 日本リスク研究学会誌
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日本リスク研究学会誌 20 (3), 203-210, 2010
一般社団法人日本リスク学会
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詳細情報 詳細情報について
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- CRID
- 1390282679407976704
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- NII論文ID
- 40017384868
- 130004556058
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- NII書誌ID
- AN10490730
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- ISSN
- 21854548
- 09155465
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- NDL書誌ID
- 10900309
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可