Indoor Radon Survey in 31 Provincial Capital Cities and Estimation of Lung Cancer Risk in Urban Areas of China.

Biomedical and environmental sciences : BES Pub Date : 2024-11-20 DOI:10.3967/bes2024.165

Xiaoxiang Miao, Yinping Su, Changsong Hou, Yanchao Song, Bowei Ding, Hongxing Cui, Yunyun Wu, Quanfu Sun

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Abstract

Objective: We aimed to analyze the current indoor radon level and estimate the population risk of radon-induced lung cancer in urban areas of China.

Methods: Using the passive monitoring method, a new survey on indoor radon concentrations was conducted in 2,875 dwellings across 31 provincial capital cities in Chinese mainland from 2018 to 2023. The attributable risk of lung cancer induced by indoor radon exposure was estimated based on the risk assessment model.

Results: The arithmetic mean (AM) and geometric mean (GM) of indoor radon concentrations were 65 Bq/m³ and 55 Bq/m³, respectively, with 13.6% of measured dwellings exceeding 100 Bq/m³ and 0.6% exceeding 300 Bq/m³. The estimated number of lung cancer deaths induced by indoor radon exposure was 150,795, accounting for 20.30% (95% CI: 20.21%-20.49%) of the lung cancer death toll.

Conclusion: This study provided the most recent data on national indoor radon levels in urban areas and the attributable risk of lung cancer. These results served as an important foundation for further research on the disease burden of indoor radon exposure and radon mitigation efforts.

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Biomedical and environmental sciences : BES

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