Arsenic accumulation in rice (Oryza sativa L.): Human exposure through food chain

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Show simple item record Rahman, MA Hasegawa, H Rahman, MA Miah, MA Tasmin, A 2012-02-02T06:26:10Z 2008-01
dc.identifier.citation Ecotoxicology And Environmental Safety, 2008, 69 (2), pp. 317 - 324
dc.identifier.issn 0147-6513
dc.identifier.other C1UNSUBMIT en_US
dc.description.abstract Although human exposure to arsenic is thought to be caused mainly through arsenic-contaminated underground drinking water, the use of this water for irrigation enhances the possibility of arsenic uptake into crop plants. Rice is the staple food grain in Bangladesh. Arsenic content in straw, grain and husk of rice is especially important since paddy fields are extensively irrigated with underground water having high level of arsenic concentration. However, straw and husk are widely used as cattle feed. Arsenic concentration in rice grain was 0.5±0.02 mg kg-1 with the highest concentrations being in grains grown on soil treated with 40 mg As kg-1 soil. With the average rice consumption between 400 and 650 g/day by typical adults in the arsenic-affected areas of Bangladesh, the intake of arsenic through rice stood at 0.200.35 mg/day. With a daily consumption of 4 L drinking water, arsenic intake through drinking water stands at 0.2 mg/day. Moreover, when the rice plant was grown in 60 mg of As kg-1 soil, arsenic concentrations in rice straw were 20.6±0.52 at panicle initiation stage and 23.7±0.44 at maturity stage, whereas it was 1.6±0.20 mg kg-1 in husk. Cattle drink a considerable amount of water. So alike human beings, arsenic gets deposited into cattle body through rice straw and husk as well as from drinking water which in turn finds a route into the human body. Arsenic intake in human body from rice and cattle could be potentially important and it exists in addition to that from drinking water. Therefore, a hypothesis has been put forward elucidating the possible food chain pathways through which arsenic may enter into human body
dc.publisher Elsevier Inc
dc.relation.hasversion Accepted Manuscript version en_US
dc.relation.isbasedon 10.1016/j.ecoenv.2007.01.005
dc.title Arsenic accumulation in rice (Oryza sativa L.): Human exposure through food chain
dc.type Journal Article
dc.parent Ecotoxicology And Environmental Safety
dc.journal.volume 2
dc.journal.volume 69
dc.journal.number 2 en_US
dc.publocation San Diego, USA en_US
dc.identifier.startpage 317 en_US
dc.identifier.endpage 324 en_US SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 0502 Environmental Science and Management
dc.personcode 112851
dc.percentage 100 en_US Environmental Science and Management en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US en_US
dc.location.activity en_US
dc.description.keywords Arsenic
dc.description.keywords Rice
dc.description.keywords Toxicity
dc.description.keywords Food chain
dc.description.keywords Human exposure
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
pubs.organisational-group /University of Technology Sydney/Strength - Environmental Science
utslib.copyright.status Open Access 2015-04-15 12:23:47.074767+10
pubs.consider-herdc false
utslib.collection.history School of the Environment (ID: 344)
utslib.collection.history School of the Environment (ID: 344)
utslib.collection.history General (ID: 2)

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