Geographical variation in total and inorganic arsenic content of polished (white) rice.
By A. Meharg, Paul N. Williams, E. Adomako, Youssef Y Lawgali, C. Deacon, Antía Villada, R. Cambell, Guoxin Sun, Yong-guan Zhu, Joerg Feldmann and 5 more. Environmental Science and Technology, 2009
731 citations recorded by the source corpus.
An extensive data set of total arsenic analysis for 901 polished (white) grain samples, originating from 10 countries from 4 continents, was compiled. The samples represented the baseline (i.e., notspecifically collected from arsenic contaminated areas), and all were for market sale in major conurbations. Median total arsenic contents of rice varied 7-fold, with Egypt (0.04 mg/kg) and India (0.07 mg/kg) having the lowest arsenic content while the U.S. (0.25 mg/kg) and France (0.28 mg/kg) had the highest content. Global distribution of total arsenic in rice was modeled by weighting each country's arsenic distribution by that country's contribution to global production. A subset of 63 samples from Bangladesh, China, India, Italy, and the U.S. was analyzed for arsenic species. The relationship between inorganic arsenic contentversus total arsenic contentsignificantly differed among countries, with Bangladesh and India having the steepest slope in linear regression, and the U.S. having the shallowest slope. Using country-specific rice consumption data, daily intake of inorganic arsenic was estimated and the associated internal cancer risk was calculated using the U.S. Environmental Protection Agency (EPA) cancer slope. Median excess internal cancer risks posed by inorganic arsenic ranged 30-fold for the 5 countries examined, being 0.7 per 10,000 for Italians to 22 per 10,000 for Bangladeshis, when a 60 kg person was considered.
Subfields: Environmental Chemistry, Health, Toxicology and Mutagenesis, Pollution
View Paper: https://www.semanticscholar.org/paper/517aef4705a477ec41d4989ca5c03eef5d553b8b
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Citations in the corpus
- Arsenic in foodchain and community health risk: a study in Gangetic West Bengal (2013, neutral): “[14,15,21-35].”
- Biotechnological advances in bioremediation of heavy metals contaminated ecosystems: an overview with special reference to phytoremediation (2014, background): “The strong Fe(II) chelators promote reoxidation, whereas strong Fe(III) chelators impede it.”
- Silicon, the silver bullet for mitigating biotic and abiotic stress, and improving grain quality, in rice? (2015, background): “, 2013) and arsenic (Meharg et al., 2009), the trace metal contamination of slag, which has always been an issue regarding nickel and chromium (Ma and Takahashi 2002), needs further examination (Ganne et al.”
- The roles of membrane transporters in arsenic uptake, translocation and detoxification in plants (2020, background): “Foodstuff, especially rice, is a major source of inorganic As for humans (Li et al., 2011; Meharg et al., 2009; Zhao & Wang, 2020).”
- Recent advances in arsenic accumulation and metabolism in rice (2010, background): “Total As concentration in market samples of rice grains has been reported to vary from 0.01 to 0.82 mg/kg (Meharg et al. 2009).”
- Arsenic Accumulation in Rice and Probable Mitigation Approaches: A Review (2017, background): “[11], rice of Ghana had the lowest median arsenic concentration (20 ng g−1), followed by India (50 ng g−1), while, the USA, Italy, and Thailand had the highest arsenic concentration, with China and Bangladesh being intermediate.”
- Rice is more efficient in arsenite uptake and translocation than wheat and barley (2010, background): “…of uptake and translocation, coupled with arsenite mobilisation in submerged paddy soil, is an important reason why rice accumulates excessive levels of As in straw and grain, thus posing a significant health risk to animals and humans (Abedin et al. 2002a; Meharg et al. 2009; Zhu et al. 2008b).”