Open AccessAssessment of radionuclide contamination of plant resources of the Voronezh region by example of leaves of winter linden tree
Author(s) -
N.A. Dyakova
Publication year - 2020
Publication title -
bûlletenʹ gosudarstvennogo nikitskogo botaničeskogo sada
Language(s) - English
Resource type - Journals
ISSN - 0513-1634
DOI - 10.36305/0513-1634-2020-134-87-93
Subject(s) - radionuclide , radium , thorium , strontium , potassium , caesium , radiochemistry , contamination , environmental science , strontium 90 , isotopes of strontium , coefficient of variation , environmental chemistry , chemistry , mineralogy , uranium , biology , nuclear physics , chromatography , physics , ecology , organic chemistry
As part of the study, the activity of artificial and natural radionuclides (strontium-90, cesium-137, potassium-40, thorium-232, radium-226) was determined in 36 samples of medicinal plant raw materials of the core and upper soil layers on which the plants were grown. All samples meet the existing requirements of regulatory documentation on radionuclide activity. The average value of the strontium-90 accumulation coefficient was 0.39, in different samples of the region it varied from 0.31 to 0.60. Cesium-137 accumulation coefficients ranged from 0.29 to 0.65 at an average of 0.39. For thorium-232, the average accumulation coefficient in the core lip flowers is 0.15 and took values in the samples studied from 0.09 to 0.231. For potassium-40, the average accumulation ratio in the feed was 0.98 and varied from 0.71 to 1.29, and for radium-226 - 0.47, with a variation from 0.39 to 0.59.