Effect of tritium on the morpho-anatomical structure of the common reed (Phragmites australis)
Yankauskas A.B. Larionova N.V. Shatrov A.N.
2021National Medical Research Radiological Centre of the Ministry of Health of the Russian Federation
Radiation and Risk
2021#30Issue 2133 - 145 pp.
The article presents the results of research on the morpho-anatomical structure of the plants growing under chronic exposure to ionizing radiation. The research was conducted in the territory of the Se-mipalatinsk test site in the vicinity of the Shagan river. The radioecological situation in the study area is determined by the presence of the long-lived radionuclides 3H, 90Sr, 239+240Pu in components com-prising the natural environment. The main contributor to the radioactive contamination of the nature components is 3H. The findings of the study show that when 3H specific activity in the free water of the common reed grass increases to n×103-n×105Bq/kg, some anatomical parameters of its cane and leaf are reduced. The study also shows that with the increase in tritium specific activity from n×102to n×105Bq/kg the anatomical parameters of the cane (sclerenchyma, cane diameter) de-crease. When the specific activity of tritium increases to n×104Bq/kg, the leaf anatomical parameters are reduced. When specific activity of 3H increases to n×105Bq/kg there is the general tendency to the insignificant increase in anatomical parameters.
Cane , Common reed (Phragmites australis) , Ionizing radiation , Morpho-anatomical parameters of sugarcane , Radionuclide pollution , Semipalatinsk test site , Specific activity , Tritium
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Branch Institute of Radiation Safety and Ecology, National Nuclear Center of the Republic of Kazakhstan, Kurchatov, Kazakhstan
Branch Institute of Radiation Safety and Ecology
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