Investigation and analysis of indoor residential radon concentration in typical areas of Hubei Province
10.3969/j.issn.1006-2483.2020.01.010
- VernacularTitle:湖北省典型地区居民室内氡浓度调查与分析
- Author:
Cong LI
1
;
Wenshan ZHOU
2
;
Fang WANG
2
;
Ziyuan XU
3
;
Tian XU
4
;
Xiqin XU
5
;
Tongqiang ZHAO
6
;
Yifei SHI
7
;
Bing YU
8
;
Chunhong WANG
1
;
Tingming SHI
2
Author Information
1. School of Health Sciences, Wuhan University, Wuhan 430071, China
2. Hubei Provincial Center for Disease Control and Prevention，Wuhan 430079, China
3. School of Public Health, Kunming Medical University, Kunming 650500, China
4. Wuhan Prevention and Treatment Center for Occupation Diseases, Wuhan 430022, China
5. Xianning Municipal Center for Disease Control and Prevention, Xianning, Hubei 437100, China
6. Shiyan Prevention and Treatment Center for Occupation Disease, Shiyan, Hubei 442000,China
7. Daye Center for Disease Control and Prevention, Huangshi, Hubei 435100, China
8. Enshi Center for Disease Control and Prevention, Enshi, Hubei 445000, China
- Publication Type:Journal Article
- Keywords:
Residential;
Radon concentration;
Effective dose
- From:
Journal of Public Health and Preventive Medicine
2020;31(1):44-47
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the residential radon concentration in typical areas of Hubei Province and assess the dose hazards of radon to human body. Methods According to geographical location, five cities including Wuhan, Enshi, Shiyan, Xianning and Daye were selected, and the stratified cluster sampling and monitoring were conducted in accordance with the residential building structure. From April to July, 2019, RSKS standard detectors were placed in the bedroom or living room of the tested families. After continuously sampling for three months, those detectors were returned back to the laboratory for test readings using Radosys system. Results A total of 651 detectors were deployed in 577 households of 70 communities, and 634 detectors were recovered. The recovery rate of detectors was 97.4%. The indoor residential radon concentration in Hubei Province showed a logarithmic normal distribution, with a median (25% quantile and 75% quantile) of 40.52 (29.13,64.74) Bq/m3 and an annual effective dose of 2.02 mSv. The indoor radon concentrations in Wuhan and Enshi were significantly higher than those in Shiyan, Xianning and Daye (P<0.05). The indoor radon concentrations in brick wood or civil structures were significantly higher than those in reinforced concrete structures (P<0.05), and indoor radon concentration in the first floor was significantly higher than those in other floors (P<0.05). The indoor radon concentrations after 2010 were significantly lower than those between 2001 and 2010 (P<0.05). Conclusion The number of households with indoor radon concentrations exceeding the national limit in newly-built buildings accounted for 10.1%; The indoor residential radon concentration levels of in Hubei Province were influenced by building structure, age and floor.
