Variation in Rice Cadmium Related to Human Exposure
- 23 May 2013
- journal article
- research article
- Published by American Chemical Society (ACS) in Environmental Science & Technology
- Vol. 47 (11), 5613-5618
- https://doi.org/10.1021/es400521h
Abstract
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.Keywords
This publication has 25 references indexed in Scilit:
- Current situation of cadmium-polluted paddy soil, rice and soybean in the Mae Sot District, Tak Province, ThailandSoil Science and Plant Nutrition, 2012
- Nramp5 Is a Major Transporter Responsible for Manganese and Cadmium Uptake in RiceTHE PLANT CELL ONLINE, 2012
- Cadmium dietary exposure in the European populationEFSA Journal, 2012
- Current Status of Cadmium Exposure among Japanese, Especially Regarding the Safety Standard for Cadmium Concentration in Rice and Adverse Effects on Proximal Renal Tubular Function Observed in Farmers Exposed to Cadmium through Consumption of Self-Grown RiceNippon Eiseigaku Zasshi (Japanese Journal of Hygiene), 2012
- Cadmium distribution in rice plants grown in three different soils after application of pig manure with added cadmiumEnvironmental Geochemistry and Health, 2011
- Cadmium induced renal dysfunction among residents of rice farming area downstream from a zinc-mineralized belt in ThailandToxicology Letters, 2010
- Effects of Water Management on Cadmium and Arsenic Accumulation and Dimethylarsinic Acid Concentrations in Japanese RiceEnvironmental Science & Technology, 2009
- Occurrence and Partitioning of Cadmium, Arsenic and Lead in Mine Impacted Paddy Rice: Hunan, ChinaEnvironmental Science & Technology, 2009
- Chronic renal failure among farm families in cascade irrigation systems in Sri Lanka associated with elevated dietary cadmium levels in rice and freshwater fish (Tilapia)Environmental Geochemistry and Health, 2008
- STUDIES ON THE CHEMICAL FORM OF CADMIUM CONTAMINANTS IN PHOSPHATE FERTILIZERSSoil Science, 1982