Residential radon exposure in Astana and Aqsu, Kazakhstan.
J Radiol Prot
; 43(2)2023 06 08.
Article
em En
| MEDLINE
| ID: mdl-37257438
ABSTRACT
A pilot study was carried out to measure indoor radon concentrations in a uranium mining area of northern Kazakhstan. A total of 80 places at kindergartens, elementary schools, and dwellings were selected in Aqsu village and Astana city as the uranium mining area and background area for comparison, respectively. In Astana and Aqsu, the 3-month radon concentrations from late summer to autumn in 2022 were measured using the RADUET passive radon detectors. Radon concentrations ranged from 4 to >2000 Bq m-3(mean ± standard deviation 290 ± 173 Bq m-3) throughout the study areas. The concentrations were higher in Aqsu, and 70% of the dwellings there exceeded 300 Bq m-3, whereas only 5% of them exceeded 300 Bq m-3in Astana. Accordingly, the new dose conversion factor for radon recommended by International Commission on Radiological Protection Publication 137 was applied to calculate the annual effective dose. The annual effective dose from the inhalation of radon was estimated to be 3.6 ± 4.6 mSv y-1for Astana and 23.7 ± 15.6 mSv y-1, for Aqsu, which are both higher than the world average value of 2.5 mSv y-1.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Monitoramento de Radiação
/
Radônio
/
Urânio
/
Poluição do Ar em Ambientes Fechados
/
Poluentes Radioativos do Ar
País/Região como assunto:
Asia
/
Europa
Idioma:
En
Revista:
J Radiol Prot
Ano de publicação:
2023
Tipo de documento:
Article