Consumption of brown rice: a potential pathway for arsenic exposure in rural Bengal

Environmental Science & Technology
Dipti HalderProsun Bhattacharya

Abstract

This study assesses the arsenic (As) accumulation in different varieties of rice grain, that people in rural Bengal mostly prefer for daily consumption, to estimate the potential risk of dietary As exposure through rice intake. The rice samples have been classified according to their average length (L) and L to breadth (B) ratio into four categories, such as short-bold (SB), medium-slender (MS), long-slender (LS), and extra-long slender (ELS). The brown colored rice samples fall into the SB, MS, or LS categories; while all Indian Basmati (white colored) are classified as ELS. The study indicates that the average accumulation of As in rice grain increases with a decrease of grain size (ELS: 0.04; LS: 0.10; MS: 0.16; and SB: 0.33 mg kg(-1)), however people living in the rural villages mostly prefer brown colored SB type of rice because of its lower cost. For the participants consuming SB type of brown rice, the total daily intake of inorganic As (TDI-iAs) in 29% of the cases exceeds the previous WHO recommended provisional tolerable daily intake value (2.1 μg day(-1) kg(-1) BW), and in more than 90% of cases, the As content in the drinking water equivalent to the inorganic As intake from rice consumption (C(W,eqv)) exceeds the WH...Continue Reading

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Citations

Dec 4, 2012·Environmental Science & Technology·Dipti HalderProsun Bhattacharya
May 15, 2013·Environmental Science & Technology·Andrew A MehargM Rafiqul Islam
Jul 19, 2013·Journal of Agricultural and Food Chemistry·Sumontha NookabkaewJutamaad Satayavivad
May 26, 2015·The Science of the Total Environment·Tijo JosephEdward A McBean
Jul 26, 2014·Journal of the Science of Food and Agriculture·Bishwajit Sinha, Kallol Bhattacharyya
Feb 18, 2014·Ecotoxicology and Environmental Safety·Xing WuLingtian Xie
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Aug 19, 2014·The Science of the Total Environment·Dipti HalderProsun Bhattacharya
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Feb 14, 2021·The Science of the Total Environment·Muhammad Mahroz HussainHua Zhang
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Aug 25, 2021·The Science of the Total Environment·Debojyoti MoulickSubhas Chandra Santra

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