绍兴市辐射环境质量监测与分析

Analysis and Evaluation of Radiation Environment Quality in Shaoxing City

为全面了解绍兴市辐射环境质量状况,评估环境γ辐射对公众照射的剂量,完善地区辐射环境基础资料,为后续研究提供参考,并预判杭州亚运会举办期间绍兴分会场的辐射环境质量。通过归类总结2011—2020年绍兴市空气、水体、土壤的环境放射性水平监测数据,并进行统计分析评价。得出2011—2020年绍兴市环境γ辐射空气吸收剂量率、水体放射性核素活度浓度、土壤放射性核素活度浓度均在本底涨落范围内,与全国或浙江省本底调查值相当;环境γ辐射致公众年有效剂量当量约为465μSv/a,略低于全国平均水平;饮用水放射性水平远低于GB 5749—2006《生活饮用水卫生标准》指导值。所以2011—2020年绍兴市辐射环境质量状况整体处于稳定良好的状态,预计杭州亚运会举办期间及未来几年将继续保持在良好的宜居状态。

To comprehensively understand the radiation environment quality of Shaoxing City and assess the environment γ The dose of radiation to the public,improve the basic data of regional radiation environment,provide reference for subsequent research,and predict the radiation environment quality of Shaoxing branch venue during the Hangzhou Asian Games.The environmental radioactive level monitoring data of air,water and soil in Shaoxing from 2011 to 2020 were classified and summarized,and statistical analysis and evaluation were carried out.Results Shaoxing's environment from 2011 to 2020 γ The absorbed dose rate of radiation air,the concentration of radionuclide activity in water and the concentration of radionuclide activity in soil are all within the range of background fluctuation,which is equivalent to the background survey values in China or Zhejiang Province;environment γ The annual effective dose equivalent of radiation to the public is about 465 μ Sv/a,slightly lower than the national average;The radioactivity level of drinking water is far lower than the guideline value of the Hygienic Standard for Drinking Water(GB 5749-2006).Conclusion The overall radiation environment quality of Shaoxing City is in a stable and good state from 2011 to 2020.It is expected that the Hangzhou Asian Games will continue to be held in a good livable state in the coming years.