海南昌江核电站周围环境地表γ辐射剂量率本底调查  

Survey of environmental terrestrial gamma-radiation baseline levels around Hainan Changjiang Nuclear Power Station

作　　者：陈玉珅[1] 王川健[1] 王龙义[1] 雒潇 陈妹[1] 

机构地区：[1]海南省疾病预防控制中心,海南海口570203

出　　处：《中国热带医学》2014年第10期1189-1191,共3页China Tropical Medicine

基　　金：海南省自然科学基金(No.811161)

摘　　要：目的通过开展在建的海南昌江核电站周围环境地表γ辐射剂量率本底监测，建立该核电站周围环境地表γ辐射剂量率基线数据库，为当地政府和核电站提供宝贵的基线资料，为国家提供基本国情资料。方法依据《辐射环境监测技术规范））（HJ/T61—2001）和《环境地表γ辐射剂量率测定规范》（GB/T14583—93）进行监测，采用SPSS13．0统计软件对数据进行录入和分析。结果环境地表γ辐射空气吸收剂量率范围为0．02—0．36μGy／h，均数为（0．10±0．06）μGy／h，雅加林场最大，新村、永安村最小。室外天然γ辐射外照射所致居民的人均年有效剂量为87．07μSv。距核电站2、5、10、20、50km均数分别为（O．08±0．04）μGy／h、（0．06±0．02）μGy／h、（0．08±0．03）μGy／h、（0．12±0．02）μCy/h、（0．16±0．10）μGy／h，其中除了距核电站2km和10km均数外，其余各距离均数间差别均有统计学意义（P〈0．05）。结论昌江核电站周围环境地表γ辐射剂量率在海南省正常室外天然辐射本底水平内；室外天然γ辐射外照射所致居民的人均年有效剂量在我国的人均年有效剂量水平内，当地居民在此人均年有效剂量时对健康是安全的。Objective To survey the environmental terrestrial gamma-radiation baseline levels around Hainan Changjiang Nuclear Power Station under construction for setting up gamma radiation level database around the nuclear power station. Methods On the basis of the relevant provisions in＂ Technical criteria for radiation environmental monitoring ＂（H J/ T61-2001）.Field monitoring was carried out in accordance with the legislation relevant to provisions of Norm for the measurement of environmental terrestrial gamma-radiation levels（GB/T14583-93）. SPSS 13.0 statistical software was used for data input and statistical analysis. Results The environmental terrestrial gamma radiation dose range around Changjiang Nuclear Power Station was from 0.02 to 0.36 μGy/h, and the mean was （0.10±0.06） μGy/h.In addition. The radiation dose was the largest in Yajia forest farm and the smallest in Xin village and Yongan village. Natural gamma radiation ambient outdoor around Changjiang Nuclear Power Station per capita annual effective dose to residents was 87.07 μSv,The means of gamma radiation dose 2kin, 5kin, 10kin, 20km, 50 km away from the nuclear power station were （0.08±0.04） μGy/h, （0.06±0 q2）μGy/h, （0.08±0.03） μGy/h,（0.12±0.02） μGy/h,（0.16±0.10） μGy/h.The gamma radiation air absorbed dose rate away from the n - power station 2km, 5km, 10km, 20km, 50 km showing statistical significance except for 2km and 10km（P〈0.05）.Conclusions The outdoor environmental terrestrial gamma radiation dose around Changjiang Nuclear Power Station was in normal level. The per capita natural gamma radiation dose to residents around Changjiang Nuclear Power Station was within China＇s per capita annual radiation dose level and safe for the health of local residents.

关 键 词：环境地表γ辐射剂量率 辐射本底 环境辐射 海南昌江核电站 

分 类 号：R144.1[医药卫生—公共卫生与预防医学]