Natural radioactivity in winter wheat from organic and conventional agricultural systems

被引：24
|
作者：
Lindahl, Patric [1 ]
Maquet, Alain [1 ]
Hult, Mikael [1 ]
Gasparro, Joel [1 ]
Marissens, Gerd [1 ]
de Orduna, Raquel Gonzalez [1 ]
机构：
[1] Commiss European Communities, Joint Res Ctr, Inst Reference Mat & Measurements EC JRC IRMM, B-2440 Geel, Belgium
来源：
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY | 2011年 / 102卷 / 02期
关键词：
Natural radionuclides; Wheat; Soil; Organic farming; Conventional farming; SOIL; PLANT; RADIONUCLIDES; URANIUM; RA-226; AVAILABILITY; RADIOCESIUM; RADIUM; FOOD; TH;
D O I：
10.1016/j.jenvrad.2010.11.007
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The distribution of natural radionuclides was studied in winter wheat plants collected from three sites in Belgium during 2004-2007. Activity concentrations of K-40, Ra-226, Ra-228 and Th-228 in organically and conventionally grown wheat, and in the corresponding soil samples, were determined using ultra low-level gamma-ray spectrometry. The observed soil-to-wheat concentration ratios were calculated for the different parts of the wheat plant (root, stem and grain) in the two agricultural systems (organic and conventional). There were large variations in radionuclide activity concentrations between the sites and fields, but no significant difference between conventionally and organically grown wheat plants was observed. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：163 / 169
页数：7
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