Uptake of uranium, thorium and radium isotopes by plants growing in dam impoundment Tasotkel and the Lower Shu region (Kazakhstan)

被引：6

作者：

Matveyeva, Ilona ^{[1
]}

Jacimovic, Radojko ^{[2
]}

Planinsek, Petra ^{[2
,3
]}

Smodis, Borut ^{[2
,3
]}

Burkitbayev, Mukhambetkali ^{[1
]}

机构：

[1] Al Farabi Kazakh Natl Univ, Fac Chem & Chem Technol, Alma Ata 050040, Kazakhstan

[2] Jozef Stefan Inst, Dept Environm Sci, Ljubljana 1000, Slovenia

[3] Jozef Stefan Int Postgrad Sch, Ljubljana 1000, Slovenia

来源：

RADIOCHIMICA ACTA | 2016年 / 104卷 / 01期

关键词：

Uranium industry; dam impoundment Tasotkel; the Lower Shu; concentration ratio; root barrier coefficient; ENVIRONMENTAL-IMPACT ASSESSMENT; NATURAL RADIONUCLIDES; METAL CONTAMINATION; MILL TAILINGS; VICINITY; RA-226; SOILS; MINE;

D O I：

10.1515/ract-2015-2457

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The activity concentrations of isotopes of uranium, thorium and radium-226 in dominant species of plants (Xantium strumarium, Phragmites communis, Artemisia nitrosa and Artemisia serotina) growing on the territories contaminated by uranium industry of Kazakhstan (close to dam impoundment Tasotkel and the Lower Shu region) are presented. The obtained data showed the significant variations of activity concentrations of isotopes of uranium, thorium and radium-226 in above ground parts. The concentrations of most of the investigated radionuclides in the root system are higher than in the aboveground parts; it can be explained by root barrier. It was found that the highest root barrier has Xantium strumarium, especially for uranium isotopes. The concentration ratios of radionuclides were calculated, and as the result it was found that the highest accumulation ability in the investigated region has Artemisia serotina.

引用

页码：51 / 57

页数：7