A method of managing the risk of cadmium (Cd) intake based on lifetime average exposure of Cd in rice
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- ONO Kyoko
- Research Institute of Science for Safety and Sustainability (RISS), National Institute of Advanced Industrial Science and Technology (AIST)
Bibliographic Information
- Other Title
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- コメ中カドミウム(Cd)の生涯平均曝露濃度を用いたコメのCdに関するリスク管理方法
- 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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Abstract
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.
Journal
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- Japanese Journal of Risk Analysis
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Japanese Journal of Risk Analysis 20 (3), 203-210, 2010
The Society for Risk Analysis, Japan
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Details 詳細情報について
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- CRID
- 1390282679407976704
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- NII Article ID
- 40017384868
- 130004556058
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- NII Book ID
- AN10490730
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- ISSN
- 21854548
- 09155465
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- NDL BIB ID
- 10900309
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed