深圳市土壤及环境大气氡浓度水平调查

doi:10.27045/j.1000-8187.202605008

Abstract

Abstract: This study comprehensively investigates the radon concentration levels in soil and ambient air in Shenzhen, providing scientific basis for radiation environmental impact assessment. From March to October 2025, soil radon concentration, soil radon exhalation rate, and ambient air radon concentration were measured at 151 sites in Shenzhen. Soil radon concentrations in Shenzhen range from 3.72×10³ to 3.44×10⁴ Bq·m^-3. In-situ ambient air radon concentrations range from 5.60 to 19.46 Bq·m^-3.The soil radon concentration in Shenzhen exhibited a clear seasonal variation, with higher concentrations in the dry season and lower concentrations in the rainy season. Soil moisture content is the key factor determining the radon exhalation rate, which subsequently affects the soil radon concentration levels. The seasonal variation of outdoor air radon concentration in Shenzhen was not significant. Ambient air radon concentration showed a weak correlation with soil radon concentration, while no correlation was observed with soil radon exhalation rate. The levels of soil and outdoor air radon in Shenzhen are within the normal background range and show no significant difference from other regions in China or abroad.

Key words: soil radon concentration, air radon concentration, soil radon exhalation rate, Shenzhen

CLC Number:

X591

LIANG Xuehui, LI Yaqin, GE Yan, LIU Haigui, WU Zhengxin, YAN Qiang, LIU Guoqing. Survey and analysis on soil and environmental radon concentration levels in Shenzhen[J].RADIATION PROTECTION, 2026, 46(5): 447-454.

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Survey and analysis on soil and environmental radon concentration levels in Shenzhen

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