Measurements of natural radioactivity in phosphate fertilizers

被引：41
|
作者：
Ioannides, KG [1 ]
Mertzimekis, TJ [1 ]
Papachristodoulou, CA [1 ]
Tzialla, CE [1 ]
机构：
[1] AGR RES STN,GR-45110 IOANNINA,GREECE
来源：
SCIENCE OF THE TOTAL ENVIRONMENT | 1997年 / 196卷 / 01期
关键词：
radium; radon; emanation; fertilizers;
D O I：
10.1016/S0048-9697(96)05390-9
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The natural radioactivity, mainly due to radium (Ra-226), in phosphate fertilizers used in north-western Greece has been measured by gamma-spectroscopy. Also radioactivity measurements were performed in soil samples and were compared to samples from undisturbed soils. Ra-236 belongs to the U-238 chain and is the precursor of radon gas (Rn-222). The radon concentrations in warehouses, where large quantities of fertilizers are kept, were measured with CR-39 SSNTDs. The radium concentrations in the fertilizers ranged from 0 to 4584 Bq kg(-1) and the radon concentrations in warehouses were measured 540-3320 Bq m(-3). The results are discussed from the radiation protection point of view. (C) 1997 Elsevier Science B.V.
引用
收藏
页码：63 / 67
页数：5
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