Document Detail


Soil to plant transfer of 238U, 226Ra and 232Th on a uranium mining-impacted soil from southeastern China.
MedLine Citation:
PMID:  15878419     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Both soil and plant samples of nine different plant species grown in soils from southeastern China contaminated with uranium mine tailings were analyzed for the plant uptake and translocation of 238U, 226Ra and 232Th. Substantial differences were observed in the soil-plant transfer factor (TF) among these radionuclides and plant species. Lupine (Lupinus albus) exhibited the highest uptake of 238U (TF value of 3.7x10(-2)), while Chinese mustard (Brassica chinensis) had the least (0.5x10(-2)). However, in the case of 226Ra and 232Th, the highest TFs were observed for white clover (Trifolium pratense) (3.4x10(-2)) and ryegrass (Lolium perenne) (2.1x10(-3)), respectively. 232Th in the tailings/soil mixture was less available for plant uptake than 226Ra or 238U, and this was especially evident for Chinese mustard and corn (Zea mays). The root/shoot (R/S) ratios obtained for different plants and radionuclides shown that Indian mustard had the smallest R/S ratios for both 226Ra (5.3+/-1.2) and 232Th (5.3+/-1.7), while the smallest R/S ratio for 238U was observed in clover (2.8+/-0.9).
Authors:
S B Chen; Y G Zhu; Q H Hu
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of environmental radioactivity     Volume:  82     ISSN:  0265-931X     ISO Abbreviation:  J Environ Radioact     Publication Date:  2005  
Date Detail:
Created Date:  2005-05-09     Completed Date:  2005-09-16     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8508119     Medline TA:  J Environ Radioact     Country:  England    
Other Details:
Languages:  eng     Pagination:  223-36     Citation Subset:  IM    
Affiliation:
Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Beijing 100085, PR China.
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MeSH Terms
Descriptor/Qualifier:
Angiosperms / chemistry,  metabolism*
Cereals / chemistry,  metabolism
China
Environmental Monitoring
Mining
Nitrogen / pharmacology
Phosphorus / pharmacology
Plant Roots / chemistry,  metabolism
Plant Shoots / chemistry,  metabolism
Potassium / pharmacology
Radioactive Waste
Radium / analysis,  metabolism*
Soil
Soil Pollutants, Radioactive / analysis,  metabolism*
Thorium / analysis,  metabolism*
Uranium / analysis,  metabolism*
Vegetables / chemistry,  metabolism
Chemical
Reg. No./Substance:
0/Radioactive Waste; 0/Soil; 0/Soil Pollutants, Radioactive; 7440-09-7/Potassium; 7440-14-4/Radium; 7440-29-1/Thorium; 7440-61-1/Uranium; 7723-14-0/Phosphorus; 7727-37-9/Nitrogen

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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