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Arsenic concentrations and speciation in Australian and imported rice and commercial rice products

Arsenic concentrations and speciation in Australian and imported rice and commercial rice products Environmental contextIn countries where inhabitants are not exposed to arsenic-contaminated drinking water, food is the major source of potentially toxic inorganic arsenic. To complement the existing worldwide dataset on arsenic in rice, data are presented on Australian- and overseas-grown rice, and assessed in terms of possible risk. Only a diet comprising multiple serves of some rice products per day poses a potential risk to young children.AbstractArsenic concentrations and speciation measurements were determined for six varieties of Australian-grown rice (n130), imported rice (n53) and rice products (n56) from supermarkets. Total As, inorganic As and dimethylarsinic acid (DMA) concentrations in Australian rice ranged from 16 to 630g As kg1 (means.d.: 220122gkg1), 16 to 250g As kg1 (9252g As kg1) and <5 to 432g As kg1 (125109g As kg1), respectively. Total As, inorganic As and DMA concentrations in imported rice ranged between 31 and 376g As kg1 (13098gkg1), 17 and 198g As kg1 (7340g As kg1) and <5 and 327g As kg1 (8492g As kg1) respectively. Few samples exceeded the guidelines for inorganic As in polished rice. In rice products, total As, inorganic As and DMA concentrations ranged between 21 and 480g As kg1 (160110g As kg1), 20 and 255g As kg1 (9278g As kg1) and <5 and 340g As kg1 (6569g As kg1) respectively. Sixteen samples exceeded the 100gkg1 maximum for inorganic As concentration in rice foods for infants and young children. Ingestion of multiple serves of some rice products poses a potential risk. Environmental chemistry gaps, on processes influencing As occurrence in rice, are discussed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Environmental Chemistry CSIRO Publishing

Arsenic concentrations and speciation in Australian and imported rice and commercial rice products

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References (81)

Publisher
CSIRO Publishing
Copyright
Copyright © The Author(s). Published by CSIRO Publishing
ISSN
1448-2517
eISSN
1449-8979
DOI
10.1071/EN18073
Publisher site
See Article on Publisher Site

Abstract

Environmental contextIn countries where inhabitants are not exposed to arsenic-contaminated drinking water, food is the major source of potentially toxic inorganic arsenic. To complement the existing worldwide dataset on arsenic in rice, data are presented on Australian- and overseas-grown rice, and assessed in terms of possible risk. Only a diet comprising multiple serves of some rice products per day poses a potential risk to young children.AbstractArsenic concentrations and speciation measurements were determined for six varieties of Australian-grown rice (n130), imported rice (n53) and rice products (n56) from supermarkets. Total As, inorganic As and dimethylarsinic acid (DMA) concentrations in Australian rice ranged from 16 to 630g As kg1 (means.d.: 220122gkg1), 16 to 250g As kg1 (9252g As kg1) and <5 to 432g As kg1 (125109g As kg1), respectively. Total As, inorganic As and DMA concentrations in imported rice ranged between 31 and 376g As kg1 (13098gkg1), 17 and 198g As kg1 (7340g As kg1) and <5 and 327g As kg1 (8492g As kg1) respectively. Few samples exceeded the guidelines for inorganic As in polished rice. In rice products, total As, inorganic As and DMA concentrations ranged between 21 and 480g As kg1 (160110g As kg1), 20 and 255g As kg1 (9278g As kg1) and <5 and 340g As kg1 (6569g As kg1) respectively. Sixteen samples exceeded the 100gkg1 maximum for inorganic As concentration in rice foods for infants and young children. Ingestion of multiple serves of some rice products poses a potential risk. Environmental chemistry gaps, on processes influencing As occurrence in rice, are discussed.

Journal

Environmental ChemistryCSIRO Publishing

Published: Jan 1, 2018

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