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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemistry
Variation in rice cadmium related to human exposure
Environmental Science and Technology, Volume 47, No. 11, Year 2013
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Description
Cereal grains are the dominant source of cadmium in the human diet, with rice being to the fore. Here we explore the effect of geographic, genetic, and processing (milling) factors on rice grain cadmium and rice consumption rates that lead to dietary variance in cadmium intake. From a survey of 12 countries on four continents, cadmium levels in rice grain were the highest in Bangladesh and Sri Lanka, with both these countries also having high per capita rice intakes. For Bangladesh and Sri Lanka, there was high weekly intake of cadmium from rice, leading to intakes deemed unsafe by international and national regulators. While genetic variance, and to a lesser extent milling, provide strategies for reducing cadmium in rice, caution has to be used, as there is environmental regulation as well as genetic regulation of cadmium accumulation within rice grains. For countries that import rice, grain cadmium can be controlled by where that rice is sourced, but for countries with subsistence rice economies that have high levels of cadmium in rice grain, agronomic and breeding strategies are required to lower grain cadmium. © 2013 American Chemical Society.
Authors & Co-Authors
Meharg, Andrew A.
United Kingdom, Belfast
Queen's University Belfast
Norton, Gareth J.
United Kingdom, Aberdeen
University of Aberdeen
Deacon, Claire M.
United Kingdom, Aberdeen
University of Aberdeen
Williams, Paul N.
Malaysia, Semenyih
The University of Nottingham Malaysia Campus
Adomako, Eureka E.A.
Ghana, Accra
University of Ghana
Price, Adam Huw
United Kingdom, Aberdeen
University of Aberdeen
Zhu, Yongguan
China, Beijing
Chinese Academy of Sciences
Li, Gang
China, Beijing
Chinese Academy of Sciences
Zhao, F. J.
China, Nanjing
Nanjing Agricultural University
United Kingdom, Harpenden
Rothamsted Research
McGrath, Steve P.
United Kingdom, Harpenden
Rothamsted Research
Villada, Antia
United Kingdom, Aberdeen
University of Aberdeen
Sommella, Alessia
United Kingdom, Aberdeen
University of Aberdeen
De Silva, P. Mangala C.S.
Sri Lanka, Galle
University of Ruhuna
Brammer, Hugh
Unknown Affiliation
Dasgupta, Tapash
India, Kolkata
University of Calcutta
Islam, M. Rafiqul
Bangladesh, Mymensingh
Bangladesh Agricultural University
Statistics
Citations: 355
Authors: 16
Affiliations: 10
Identifiers
Doi:
10.1021/es400521h
ISSN:
0013936X
e-ISSN:
15205851
Research Areas
Genetics And Genomics
Study Design
Cross Sectional Study
Study Approach
Quantitative