Classification of drinking water quality standard items based on uncertainty analysis in risk assessment
| Project/Area Number |
24510052
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Environmental impact assessment/Environmental policy
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| Research Institution | National Institute of Public Health |
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Principal Investigator |
OHNO Koichi 国立保健医療科学院, その他部局等, 上席主任研究官 (00322834)
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| Co-Investigator(Kenkyū-buntansha) |
TOKAI Akihiro 大阪大学, 大学院工学研究科, 教授 (90207522)
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | リスク評価 / 不確実性 / 情報の価値解析 / 情報の価値 / 環境政策 |
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| Outline of Final Research Achievements |
Uncertainties existing during risk assessment processes were analyzed. As a result, items in the Japanese drinking water quality standards can be grouped into three categories. First group is that of inorganic chemicals. Standard values in this group tend to be stricter than those in other countries. Results from epidemiological studies tend to be applied to derive standard values. The second group is that of organic chemicals. They generally apply results of animal studies, and tend to apply additional uncertainty factor (UF) in addition to the general UF value, which is 100. The last group is that of disinfection byproducts. Not only the standard values themselves but also the concepts and ideas to derive these standards are different among countries. Uncertainties existing in the environmental behavior of radioactive cesium in water phase were also analyzed. As a result, large uncertainty existed in the distribution coefficients between solid phase and aqueous phase.
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Report
(5 results)
Research Products
(20 results)
