Chinese Journal of Radiological Health 2023;32(1):26-29

doi:10.13491/j.issn.1004-714X.2023.01.006

Investigation and analysis of indoor radon concentration of urban residents in Shiyan, China

Pei LI 1 ; Wenshan ZHOU 2 ; Fang WANG 2 ; Liangliang GUO 1 ; Shaohua YANG 1 ; Tongqiang ZHAO 1 ; Jiabing WU 1 ; Rongbin SUN 1

Affiliations

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Keywords

Indoor radon concentration; Effective does; Influencing factor

Country

China

Language

Chinese

Abstract

Objective To monitor the indoor radon concentration of urban residents in Shiyan, China, and to analyze the related influencing factors. Methods From April to July, 2019, RSKS standard detectors were used to measure the indoor radon concentration of 125 households in Shiyan, and the results were analyzed. Results The indoor radon concentration of residents in Shiyan showed a skewed distribution, ranging from 13.8 to 145 Bq/m3, and M (P25,P75) was 38.3 (29.0,62.0) Bq/m3. The estimated annual effective dose of radon and radon daughters from inhalation was 0.52-5.50 mSv, and M (P25,P75) was 1.45 (1.10, 2.36) mSv, which was consistent with literature. Building structure (H = 14.10, P < 0.001), floor (H = 24.41, P < 0.001), and geographical region (H = 8.963, P < 0.05) were influencing factors of indoor radon concentration, and the differences were significant. Conclusion The indoor radon concentration of urban residents in Shiyan is lower than the national standard limit. However, in daily life, it is still necessary to take appropriate measures to reduce the concentration of indoor radon as much as possible.