Activity concentrations of selected natural radionuclides in food samples from the Czech Republic

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652052%3A_____%2F25%3AN0000026" target="_blank" >RIV/86652052:_____/25:N0000026 - isvavai.cz</a>

Výsledek na webu

<a href="https://academic.oup.com/rpd/article/201/18/1181/8260800" target="_blank" >https://academic.oup.com/rpd/article/201/18/1181/8260800</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/rpd/ncaf105" target="_blank" >10.1093/rpd/ncaf105</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Activity concentrations of selected natural radionuclides in food samples from the Czech Republic

Popis výsledku v původním jazyce

Activity concentrations of radionuclides from the thorium and uranium series, which contribute most to radiation exposure through ingestion in the existing radiation situation, were measured. Activity concentrations were determined in common foods in the Czech Republic. The determination of the activity concentrations was carried out by a combination of radiochemical separation followed by emanometry, gamma spectrometry or alpha spectrometry. Between 2020 and 2023, 51 “mixed diet” samples were analysed for 226Ra and 38 for 228Ra. The average daily intake for adults was 30.8 mBq for ²²⁶Ra and 32.9 mBq for ²²⁸Ra. The annual committed effective dose for adults from food was 3.15 µSv/year for ²²⁶Ra and 8.3 µSv/year for ²²⁸Ra, both of which are lower than the doses calculated using the reference activity concentrations from the UNSCEAR (2000) report. Similarly, activity concentrations of 226Ra, 228Ra, 238U, and 234U determined in seven common foodstuffs were lower than UNSCEAR (2000). Additionally, analyses of 210Po in leafy vegetables showed the highest median values in lettuce (62-67 mBq/kg of fresh weight) and the lowest in cabbage (7-14 mBq/kg), both comparable with UNSCEAR reference values.

Název v anglickém jazyce

Activity concentrations of selected natural radionuclides in food samples from the Czech Republic

Popis výsledku anglicky

Activity concentrations of radionuclides from the thorium and uranium series, which contribute most to radiation exposure through ingestion in the existing radiation situation, were measured. Activity concentrations were determined in common foods in the Czech Republic. The determination of the activity concentrations was carried out by a combination of radiochemical separation followed by emanometry, gamma spectrometry or alpha spectrometry. Between 2020 and 2023, 51 “mixed diet” samples were analysed for 226Ra and 38 for 228Ra. The average daily intake for adults was 30.8 mBq for ²²⁶Ra and 32.9 mBq for ²²⁸Ra. The annual committed effective dose for adults from food was 3.15 µSv/year for ²²⁶Ra and 8.3 µSv/year for ²²⁸Ra, both of which are lower than the doses calculated using the reference activity concentrations from the UNSCEAR (2000) report. Similarly, activity concentrations of 226Ra, 228Ra, 238U, and 234U determined in seven common foodstuffs were lower than UNSCEAR (2000). Additionally, analyses of 210Po in leafy vegetables showed the highest median values in lettuce (62-67 mBq/kg of fresh weight) and the lowest in cabbage (7-14 mBq/kg), both comparable with UNSCEAR reference values.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

30304 - Public and environmental health

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Radiation Protection Dosimetry

ISSN

0144-8420

e-ISSN

1742-3406

Svazek periodika

201

Číslo periodika v rámci svazku

18

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

1181–1187

Kód UT WoS článku

001575263100001

EID výsledku v databázi Scopus

2-s2.0-105020828344