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.
Radiochimica Acta publishes original papers, review articles, and “rapid communications” (short articles of a more timely interest) on all chemical aspects of nuclear science and technology. The journal is geared toward scientists who are actively engaged in research work.