海阳核电站周边地区环境γ辐射剂量率水平调查与评价

详细信息    查看全文 | 推荐本文 |

英文篇名：Investigation and assessment of environmental gamma radiation dose rate in surrounding area of Haiyang nuclear power plant 作者：杨宝路 ; 周强 ; 张京 ; 李则书 ; 李文红 ; 拓飞 英文作者：YANG Baolu;ZHOU Qiang;ZHANG Jing;LI Zeshu;LI Wenhong;TUO Fei;Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection,Chinese Center for Disease Control and Prevention; 关键词：核电站 ; 车载辐射监测系统 ; γ辐射剂量率 ; 年有效剂量 英文关键词：Nuclear Power Plant;;Vehicle Radiation Monitoring System;;Gamma Radiation Dose Rate;;Annual Effective Dose 中文刊名：REDI 英文刊名：Chinese Journal of Radiological Health 机构：中国疾病预防控制中心辐射防护与核安全医学所辐射防护与核应急中国疾病预防控制中心重点实验室; 出版日期：2019-02-15 出版单位：中国辐射卫生 年：2019 期：v.28 语种：中文; 页：REDI201901023 页数：3 CN：01 ISSN：37-1206/R 分类号：91-93

摘要

目的获取海阳核电站运行前周边地区的环境γ辐射剂量率本底数据,为评价核电站运行后对周边环境的影响提供依据。方法利用GR 460车载辐射监测系统,在海阳核电站周边30 km范围内开展现场巡测,并估算居民暴露剂量。结果周边环境γ辐射空气吸收剂量率的范围为39.6～109 nGy/h,均值为72.2 nGy/h,距离核电站0～5、5～10、10～20、20～30 km区域内的γ辐射空气吸收剂量率均值间有显著差异性,室外环境γ辐射剂量率所致居民的人均年有效剂量为84.8μSv。结论海阳核电站周边地区的环境γ辐射剂量率及其所致居民暴露剂量均属于我国正常本底水平之内。
        Objective Obtain the background data of environmental gamma radiation dose rate in the surrounding areas before the operation of Haiyang Nuclear Power Plant, and provide basis for evaluating the impact on the surrounding environment after the operation of the nuclear power plant. Methods The environmental gamma radiation dose rate was measured by vehicle radiation monitoring system(GR460) within 30 km of Haiyang Nuclear Power Pland and the resultant radiation dose exposure to local residents was also estimated.Results The air absorbed dose rate ranges from 39.6 to 109 nGy/h, and the average is 72.2 nGy/h. There is a significant difference between the mean values of gamma radiated air absorbed dose rates in the regions of 0～5 km, 5～10 km, 10～20 km and 20～30 km of nuclear power plant. The per capita annual effective dose of residents caused by gamma radiation dose rate in outdoor environment is 84.8 μSv. Conclusion The environmental gamma radiation dose rate in the surrounding areas of Haiyang Nuclear Power Plant and the resultant radiation dose exposure to the local residents was were within the normal background level in China.

引文

[1] United Nations Scientific Committee on the Effects of Atomic Radiation.UNSCEAR 2000.Sources,effects and risks of ionizing radiation,Annex B:Exposures from natural radiation sources[R].United Nations:New York,2000.
    [2] 国家环境保护局,国家技术监督局.GB/T 14583-93环境地表γ辐射剂量率测定规范[S].北京:中国标准出版社,1994.
    [3] 全国环境天然放射性水平调查总结报告编写小组.全国环境天然贯穿辐射水平调查研究(1983—1990年)[J].辐射防护,1992(2):96-121.
    [4] 张利民,倪卫冲,王彩霞,等.山东海阳核电站环境辐射本底航空测量调查[J].铀矿地质,2016,32(1):36-42.
    [5] 杨晶,胡茂桂,钟少颖,等.全国γ辐射剂量率空间分布差异影响机理研究[J].地球信息科学学报,2017,19(5):625-634.
    [6] 刘亚奇,张巍,李群伟,等.海阳核电站运行前周边地区食品中放射性水平及所致居民剂量[J].中国辐射卫生,2016,25(2):146-149.
    [7] 李海亮,陈英民,许家昂,等.海阳核电站周边地区水中总α和总β放射性水平[J].中国辐射卫生,2011,20(4):455-456.
    [8] 许家昂,李全太,杨昕,等.海阳核电厂运行前周边海水中铯-137、铯-134等放射性核素水平[J].中国辐射卫生,2014,23(6):542-544.