Investigation and analysis of radon concentration during subway operation in Wuhan City, China
10.13491/j.issn.1004-714X.2024.05.003
- VernacularTitle:武汉市地铁线路运行期间氡浓度调查分析
- Author:
Mengdie SHI
1
;
Zhiteng MIN
2
;
Huaniu LIU
1
;
Bin SHI
1
;
Junling LIU
1
Author Information
1. Wuhan Centers for Disease Prevention and Control, Wuhan 430024 China.
2. Wuhan Occupational Disease Prevention and Treatment hospital, Wuhan 430015 China.
- Publication Type:OriginalArticles
- Keywords:
Wuhan;
Metro;
During operation;
Radon concentration
- From:
Chinese Journal of Radiological Health
2024;33(5):505-509
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the levels and variations of radon concentration in Wuhan subway and to provide data support for ensuring public radiation safety. Methods The typical sampling method was used to select 18 stations from Wuhan Metro Line 2, Line 3, and Line 7 for the measurement and evaluation of radon in the air. Using RAD7 electronic radon detector and continuous radon measurement method, radon concentrations in station platforms and station halls were investigated. Analysis of variance and t test were used for statistical analysis. Results The concentration of radon in Wuhan subway ranged from 8.8 to 16.2 Bq/m3, with an average of 11.5 Bq/m3, which is far lower than the limit set by Requirements for Radiological Protection for Radon in Public Underground Structure and Using Geothermal Water (WS/T 668-2019). There was no significant difference in radon concentration between station platform and station hall (t = −0.081, P > 0.05). There was no significant difference in radon concentration between different lines (F = 0.338, P > 0.05). On the whole, the radon concentration in summer was lower than that in winter, and there was no significant difference between months (F = 1.280, P > 0.05). Conclusion The radon concentrations in Wuhan subway result in low-dose radiation, and there is no significant health risk of radon exposure.
