Uptake of Toxic Heavy Metals by Rice (Oryza sativa L.) Cultivated in the Agricultural Soil near Zhengzhou City, People's Republic of China

Higher accumulation of toxic heavy metals in rice grown in agricultural soil may lead to health disorder. A field experiment was carried out to investigate uptake and translocation of Cd, Cr, Pb, As, and Hg by different parts of rice plant in various irrigation regions. The results showed the rice g...

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Bibliographic Details
Published in:Bulletin of environmental contamination and toxicology 2007-08, Vol.79 (2), p.209-213
Main Authors: Liu, W.-X, Shen, L.-F, Liu, J.-W, Wang, Y.-W, Li, S.-R
Format: Article
Language:English
Subjects:
Agricultural land
Agriculture
bioaccumulation factor
Cadmium
China
Freshwater
Heavy metal uptake
Heavy metals
Mercury
Metals, Heavy - analysis
Metals, Heavy - pharmacokinetics
Oryza - chemistry
Oryza - metabolism
Oryza sativa
Plant Structures - chemistry
Plant Structures - metabolism
Rice
Rice fields
Soil - analysis
Soil Pollutants - analysis
Soil Pollutants - pharmacokinetics
Soils
Translocation
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Summary:Higher accumulation of toxic heavy metals in rice grown in agricultural soil may lead to health disorder. A field experiment was carried out to investigate uptake and translocation of Cd, Cr, Pb, As, and Hg by different parts of rice plant in various irrigation regions. The results showed the rice grain contained significantly lower amounts of five metals than straw and root in all sampling sites. Rice root accumulated Cd, As, and Hg from the paddy soil. Moreover, the rice plant transported As very weakly, whereas Hg was transported most easily into the straw and grain among studied heavy metals.
ISSN:0007-4861
1432-0800
DOI:10.1007/s00128-007-9164-0