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자료유형
학술대회자료
저자정보
Su, S.W. (National Taiwan University) Chen, Z.S. (National Taiwan University)
저널정보
한국토양비료학회 한국토양비료학회 학술발표회 초록집 The 9th International Conference of The East and Southeast Asis Federation of Soil Science Societies
발행연도
2009.10
수록면
54 - 60 (7page)

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Agricultural soils contaminated by cadmium(Cd) are common problems in Asia due to rapid industral development, so the risks of Cd exposure from food crops consumption are concerned by public and authorities. The latest data on Cd concentration in plant-based food and the dietary intakes of Cd around the world are presented in this review. In general, Cd concentrations in major plant-based commodities seldom exceed 0.05 mg/kg fresh weight and decline in the order as: cereals > pulses > vegetables > roots and tubers > fruits in Far Eastern region. In Middle Eastern and European regions, the order is vegatables > cereals > roots and tubers > pulses > fruits. Rice has the highest Cd levels among cereals in Asian countires, but in Middle Eastern and European region the highest level of Cd occurred in leaf vegetables. The dietary intakes of Cd from plant-based commodities around the world declined in the order as : cereals > vegetables > roots and tubers > fruits > pulses. Rice is the largest contributor to total dietary Cd intake (58%) in the Far Eastern region and contributed 36% of Provisional Tolerable Daily Intake (PTDI). For high foodstuffs consumers, intake of Cd from all diets may exceed PTWI, especially for high rice consumers in Asian countries. The World Health Organization (WHO) conducted impact assessment of different maximum levels (MLs) of Cd and demonstrated that each of the four possible MLs for rice had little impact on dietary Cd intake. Since many Cd-contaminated soils in Asian countries still producing crops due to the growing population, the cost-effective techniques for reducing Cd contents in crops especially rice grain are absolutely required.

목차

Abstract
Introduction
Cd concentrations in different crops
Dietary intakes of Cd from crops
Impact assessment of different Cd maximum levels (MLs) by WHO
Techniques to reduce Cd uptake in rice grains
Conclusion
References

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