RADIATION PROTECTION ›› 2020, Vol. 40 ›› Issue (3): 204-211.

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Study on indoor radon concentration level and pollution of an office space in Chengdu

XU Lipeng1,2, GE Liangquan2, WANG Meng2, WANG Liang1, LI Bin1, YU Qiang1, WANG Qian1, GUO Xuying1, GU Yi2   

  1. 1. Sichuan Radiation Environment Managing & Monitoring Center, Chengdu 611139;
    2. Key laboratory of application nuclear technology of Sichuan province, Chengdu 610059
  • Received:2019-04-29 Published:2020-07-10

Abstract: The solid state nuclear track method and the instantaneous method were used to investigate indoor radon concentrations of an office space in Cheng Du. The results show that the range of indoor cumulative radon concentrations is 10.82-102.50 Bq/m3, the arithmetic mean is (36.56±17.38) Bq/m3, which is lower than the national and world averages. The investigation proved that new decoration materials such as glass walls and rubber ground can effectively reduce indoor radon, and ventilation can also effectively reduce indoor radon concentration. The studies found that high concentrations of PM2.5 and PM10 can affect office indoor and outdoor radon concentration levels. By finding contamination and dealing with the abnormal radon concentration in the low background laboratory, the following suggestions are given: Avoid samples with high concentration of radio-nuclides temporarily stored near the test equipment; In order to reduce the interference of radon and its daughters on measurement and improve the accuracy of analysis results, it is suggested to upgrade and transform the fresh air system of low-background laboratory.

Key words: indoor radon concentrations, office space, ambient air quality, low background laboratory

CLC Number: 

  • R144