High levels of inorganic arsenic in rice in areas where arsenic-contaminated water is used for irrigation and cooking

Rahman, MA; Hasegawa, H

High levels of inorganic arsenic in rice in areas where arsenic-contaminated water is used for irrigation and cooking

Rahman, MA

Hasegawa, H

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Publication Type:: Journal Article
Citation:: Science of the Total Environment, 2011, 409 (22), pp. 4645 - 4655
Issue Date:: 2011-10-15

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Field	Value	Language
dc.contributor.author	Rahman, MA https://orcid.org/0000-0002-8065-0286	en_US
dc.contributor.author	Hasegawa, H	en_US
dc.date.available	2011-07-22	en_US
dc.date.issued	2011-10-15	en_US
dc.identifier.citation	Science of the Total Environment, 2011, 409 (22), pp. 4645 - 4655	en_US
dc.identifier.issn	0048-9697	en_US
dc.identifier.uri	http://hdl.handle.net/10453/18003
dc.description.abstract	Rice is the staple food for the people of arsenic endemic South (S) and South-East (SE) Asian countries. In this region, arsenic contaminated groundwater has been used not only for drinking and cooking purposes but also for rice cultivation during dry season. Irrigation of arsenic-contaminated groundwater for rice cultivation has resulted high deposition of arsenic in topsoil and uptake in rice grain posing a serious threat to the sustainable agriculture in this region. In addition, cooking rice with arsenic-contaminated water also increases arsenic burden in cooked rice. Inorganic arsenic is the main species of S and SE Asian rice (80 to 91% of the total arsenic), and the concentration of this toxic species is increased in cooked rice from inorganic arsenic-rich cooking water. The people of Bangladesh and West Bengal (India), the arsenic hot spots in the world, eat an average of 450. g rice a day. Therefore, in addition to drinking water, dietary intake of arsenic from rice is supposed to be another potential source of exposure, and to be a new disaster for the population of S and SE Asian countries. Arsenic speciation in raw and cooked rice, its bioavailability and the possible health hazard of inorganic arsenic in rice for the population of S and SE Asia have been discussed in this review. © 2011 Elsevier B.V.	en_US
dc.relation.ispartof	Science of the Total Environment	en_US
dc.relation.isbasedon	10.1016/j.scitotenv.2011.07.068	en_US
dc.subject.classification	Environmental Sciences	en_US
dc.subject.mesh	Humans	en_US
dc.subject.mesh	Oryza sativa	en_US
dc.subject.mesh	Arsenic	en_US
dc.subject.mesh	Water Pollutants, Chemical	en_US
dc.subject.mesh	Environmental Exposure	en_US
dc.subject.mesh	Food Contamination	en_US
dc.subject.mesh	Biological Availability	en_US
dc.subject.mesh	Asia	en_US
dc.subject.mesh	Cooking	en_US
dc.subject.mesh	Agricultural Irrigation	en_US
dc.subject.mesh	Oryza	en_US
dc.title	High levels of inorganic arsenic in rice in areas where arsenic-contaminated water is used for irrigation and cooking	en_US
dc.type	Journal Article
utslib.citation.volume	22	en_US
utslib.citation.volume	409	en_US
utslib.for	0502 Environmental Science and Management	en_US
utslib.for	039901 Environmental Chemistry (incl. Atmospheric Chemistry)	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Life Sciences
utslib.copyright.status	closed_access
pubs.issue	22	en_US
pubs.publication-status	Published	en_US
pubs.volume	409	en_US

Abstract:

Rice is the staple food for the people of arsenic endemic South (S) and South-East (SE) Asian countries. In this region, arsenic contaminated groundwater has been used not only for drinking and cooking purposes but also for rice cultivation during dry season. Irrigation of arsenic-contaminated groundwater for rice cultivation has resulted high deposition of arsenic in topsoil and uptake in rice grain posing a serious threat to the sustainable agriculture in this region. In addition, cooking rice with arsenic-contaminated water also increases arsenic burden in cooked rice. Inorganic arsenic is the main species of S and SE Asian rice (80 to 91% of the total arsenic), and the concentration of this toxic species is increased in cooked rice from inorganic arsenic-rich cooking water. The people of Bangladesh and West Bengal (India), the arsenic hot spots in the world, eat an average of 450. g rice a day. Therefore, in addition to drinking water, dietary intake of arsenic from rice is supposed to be another potential source of exposure, and to be a new disaster for the population of S and SE Asian countries. Arsenic speciation in raw and cooked rice, its bioavailability and the possible health hazard of inorganic arsenic in rice for the population of S and SE Asia have been discussed in this review. © 2011 Elsevier B.V.

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http://hdl.handle.net/10453/18003