Determination of the radionuclide soil-to-plant transfer factors - laboratory methodology

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652052%3A_____%2F15%3A%230000370" target="_blank" >RIV/86652052:_____/15:#0000370 - isvavai.cz</a>

Výsledek na webu

<a href="http://orbit.dtu.dk/files/118577855/ENVIRA2015_abstracts_book.pdf" target="_blank" >http://orbit.dtu.dk/files/118577855/ENVIRA2015_abstracts_book.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Determination of the radionuclide soil-to-plant transfer factors - laboratory methodology

Popis výsledku v původním jazyce

The aim of the methodology of radionuclide transfer from soil to plants determination is to define a clear and reproducible method of the transfer factor determination. The particular steps and techniques are based on the IAEA documents, TECDOC-1616 and TECDOC-1497 and meet the requirements of the laboratory in the gamma spectrometry department of the National Radiation Protection Institute in the Czech Republic. The method of transfer factor determination is specified only for caesium radioisotopes because the 137Cs is the most significant contaminants of the Czech environment as a consequence of the nuclear bombs testing and the Chernobyl accident fallout. Nevertheless the methodology deals with the caesium isotopes; it can be easily transformed to another gamma spectrometry measurable radionuclide transfer from soil to plants determination, e.g. 85Sr. The plants are cultivated under the accurately specified condition in the cultivation box Q-Cell Vitrum in plastic containers or pots preventing the radionuclide escape. Although the simulation of natural conditions is always much better, the soil must treated before any experiment starts to make the experiment repeatable. The soil must be passed through 4 mm sieve and must be mixed to become homogenously contaminated. The homogeneity of the contamination is tested before the experiment starts. The method was tested and validated on corn cultivated from grains seeded to homogenously 134Cs contaminated soil. Moreover additional experiments with other types of corn and herbs were conducted using a soil contaminated with 85Sr. Presented at Envira 2015 International conference Environmental Radioactivity: Conference Proceedings.

Název v anglickém jazyce

Determination of the radionuclide soil-to-plant transfer factors - laboratory methodology

Popis výsledku anglicky

The aim of the methodology of radionuclide transfer from soil to plants determination is to define a clear and reproducible method of the transfer factor determination. The particular steps and techniques are based on the IAEA documents, TECDOC-1616 and TECDOC-1497 and meet the requirements of the laboratory in the gamma spectrometry department of the National Radiation Protection Institute in the Czech Republic. The method of transfer factor determination is specified only for caesium radioisotopes because the 137Cs is the most significant contaminants of the Czech environment as a consequence of the nuclear bombs testing and the Chernobyl accident fallout. Nevertheless the methodology deals with the caesium isotopes; it can be easily transformed to another gamma spectrometry measurable radionuclide transfer from soil to plants determination, e.g. 85Sr. The plants are cultivated under the accurately specified condition in the cultivation box Q-Cell Vitrum in plastic containers or pots preventing the radionuclide escape. Although the simulation of natural conditions is always much better, the soil must treated before any experiment starts to make the experiment repeatable. The soil must be passed through 4 mm sieve and must be mixed to become homogenously contaminated. The homogeneity of the contamination is tested before the experiment starts. The method was tested and validated on corn cultivated from grains seeded to homogenously 134Cs contaminated soil. Moreover additional experiments with other types of corn and herbs were conducted using a soil contaminated with 85Sr. Presented at Envira 2015 International conference Environmental Radioactivity: Conference Proceedings.

Druh

O - Ostatní výsledky

CEP obor

DN - Vliv životního prostředí na zdraví

OECD FORD obor

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Projekt

<a href="/cs/project/VG20122015100" target="_blank" >VG20122015100: Minimalizace dopadů radiační kontaminace na krajinu v havarijní zóně JE Temelín</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů