Application and analysis of radon-reduction methods in indoor radon pollution control
10.13491/j.issn.1004-714X.2022.02.003
- VernacularTitle:降氡方法在室内氡污染治理中的应用与分析
- Author:
Shanshan KOU
1
;
Yunyun WU
1
;
Yanchao SONG
1
;
Qingzhao ZHANG
1
Author Information
1. Key Laboratory of Radiological Protection and Nuclear Emergency, Chinese Center for Disease Control and Prevention, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088 China.
- Publication Type:Journal Article
- Keywords:
Residence;
Indoor;
Radon and its daughters;
Radon-reduction method
- From:
Chinese Journal of Radiological Health
2022;31(2):149-152
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the suitable methods for reducing the concentration levels of residential radon and its daughters. Methods Three rooms were selected and treated by natural ventilation, air purifier, and sealing/shielding, respectively. The EQF3120 device was used to measure the concentrations of radon and its daughters, and the alpha nuclear trail detector was used to measure indoor radon concentration. The three methods were compared in terms of radon reduction effect. Results After natural ventilation for 2-10 hours, the average reduction rates of the concentrations of radon and attached and unattached radon daughters in the room were 87.7%, 89.8%, and 93.7%, respectively; in the room with air purifier, the concentrations of radon and attached and unattached radon daughters were reduced by 46.3%, 94.5%, and 45.3%, respectively; after sealing and shielding, the concentration of radon was reduced by 74.9% after 1 month and 59.2% after 1 year. Conclusion All three methods have a marked effectin reducing the concentrations of indoor radon and its daughters, and natural ventilation is the most economical and effective method for reducing radon.
