Iodine-129 and Caesium-137 in Chernobyl contaminated soil and their chemical fractionation.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F03%3A49033105" target="_blank" >RIV/61389005:_____/03:49033105 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Iodine-129 and Caesium-137 in Chernobyl contaminated soil and their chemical fractionation.

Popis výsledku v původním jazyce

Soil samples from areas in Belarus, Russia and Sweden contaminated by the Chernobyl accident were analysed for I-129 by radiochemical neutron activation analysis, as well as for Cs-137 by gamma-spectrometry. The atomic ratio of I-129/(CS)-C-137 in the upper layer of the examined soil cores ranged from 0.10 to 0.30, with an average of 0.18, and no correlation between I-129/Cs-137 ratio and the distance from Chernobyl reactor to sampling location was observed. It seems feasible to use the I-129/Cs-137 ratio to reconstruct the deposition pattern of I-131 in these areas. The association of I-129 and (CS)-C-137 in the Chernobyl soil and Irish Sea sediment was investigated by a sequential extraction method. Similar speciation of I-129 in the Chernobyl soil and Irish Sea sediment was found. Approximately 70% of I-129 is bound to oxides and organic matter, and 10-20% is in the readily available phase, while most of the (CS)-C-137 (73%) in Chernobyl soil remains in the extraction residue.

Název v anglickém jazyce

Iodine-129 and Caesium-137 in Chernobyl contaminated soil and their chemical fractionation.

Popis výsledku anglicky

Soil samples from areas in Belarus, Russia and Sweden contaminated by the Chernobyl accident were analysed for I-129 by radiochemical neutron activation analysis, as well as for Cs-137 by gamma-spectrometry. The atomic ratio of I-129/(CS)-C-137 in the upper layer of the examined soil cores ranged from 0.10 to 0.30, with an average of 0.18, and no correlation between I-129/Cs-137 ratio and the distance from Chernobyl reactor to sampling location was observed. It seems feasible to use the I-129/Cs-137 ratio to reconstruct the deposition pattern of I-131 in these areas. The association of I-129 and (CS)-C-137 in the Chernobyl soil and Irish Sea sediment was investigated by a sequential extraction method. Similar speciation of I-129 in the Chernobyl soil and Irish Sea sediment was found. Approximately 70% of I-129 is bound to oxides and organic matter, and 10-20% is in the readily available phase, while most of the (CS)-C-137 (73%) in Chernobyl soil remains in the extraction residue.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DN - Vliv životního prostředí na zdraví

OECD FORD obor

—

Projekt

<a href="/cs/project/KSK4055109" target="_blank" >KSK4055109: Fyzika, chemie a informatika pro biologické, ekologické a lékařské aplikace</a><br>

Návaznosti

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

Rok uplatnění

2003

Kód důvěrnosti údajů

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

Název periodika

SCIENCE OF THE TOTAL ENVIRONMENT

ISSN

0048-9697

e-ISSN

—

Svazek periodika

308

Číslo periodika v rámci svazku

1, 2, 3

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

13

Strana od-do

97-109

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—