中华放射医学与防护杂志
中華放射醫學與防護雜誌
중화방사의학여방호잡지
Chinese Journal of Radiological Medicine and Protection
2012年
2期
129-132
,共4页
娄云%万玲%马永忠%李慧娟%孟庆华%孔玉侠%朱维杰%武大鹏%崔力萌
婁雲%萬玲%馬永忠%李慧娟%孟慶華%孔玉俠%硃維傑%武大鵬%崔力萌
루운%만령%마영충%리혜연%맹경화%공옥협%주유걸%무대붕%최력맹
日本福岛核事故%放射性污染%北京地区%应急监测
日本福島覈事故%放射性汙染%北京地區%應急鑑測
일본복도핵사고%방사성오염%북경지구%응급감측
Japanese Fukushima nuclear accident%Radioactive contamination%Beijing%Emergency monitoring
目的 调查日本福岛核事故所致北京地区的放射性污染情况,为政府制订及时有效的防控策略和处理机制提供科学的技术依据.方法 启动核应急监测体系,按照相应的监测规程和技术规范,对北京地区的空气、雨水、地表水和蔬菜的放射性污染水平进行了监测.结果 北京地区大气存在明显放射性污染的时期主要集中在事故后的15～41 d,131I放射性浓度在事故后22 d达到最高值,为5.89 mBq/m3,137Cs和134Cs的放射性浓度于事故后20 d形成了明显的高峰区,均低于131I峰值1个数量级以上；潮白河水总B放射性水平为0.314～0.602 Bq/L.结论 日本福岛核事故所致北京地区的放射性污染尚未对本地区居民产生明显的健康影响,但还需对核事故造成污染的远期情况进行持续观测.
目的 調查日本福島覈事故所緻北京地區的放射性汙染情況,為政府製訂及時有效的防控策略和處理機製提供科學的技術依據.方法 啟動覈應急鑑測體繫,按照相應的鑑測規程和技術規範,對北京地區的空氣、雨水、地錶水和蔬菜的放射性汙染水平進行瞭鑑測.結果 北京地區大氣存在明顯放射性汙染的時期主要集中在事故後的15～41 d,131I放射性濃度在事故後22 d達到最高值,為5.89 mBq/m3,137Cs和134Cs的放射性濃度于事故後20 d形成瞭明顯的高峰區,均低于131I峰值1箇數量級以上；潮白河水總B放射性水平為0.314～0.602 Bq/L.結論 日本福島覈事故所緻北京地區的放射性汙染尚未對本地區居民產生明顯的健康影響,但還需對覈事故造成汙染的遠期情況進行持續觀測.
목적 조사일본복도핵사고소치북경지구적방사성오염정황,위정부제정급시유효적방공책략화처리궤제제공과학적기술의거.방법 계동핵응급감측체계,안조상응적감측규정화기술규범,대북경지구적공기、우수、지표수화소채적방사성오염수평진행료감측.결과 북경지구대기존재명현방사성오염적시기주요집중재사고후적15～41 d,131I방사성농도재사고후22 d체도최고치,위5.89 mBq/m3,137Cs화134Cs적방사성농도우사고후20 d형성료명현적고봉구,균저우131I봉치1개수량급이상；조백하수총B방사성수평위0.314～0.602 Bq/L.결론 일본복도핵사고소치북경지구적방사성오염상미대본지구거민산생명현적건강영향,단환수대핵사고조성오염적원기정황진행지속관측.
Objective To monitor the levels of radioactive contamination due to the Japanese Fukushima nuclear accident in Beijing,so as to provide scientific technical information for government to draw effective controlling strategy and processing mechanism.Methods The system of nuclear emergency nmonitoring was started,then the radioactive contamination levels of atmosphere,rain water,surface water and vegetables in Beijing were detected according to the relative survey regulations and technology criterions.Results During the period from 15 to 41 d after the accident,obvious radioactive contamination was found in the atmosphere of Beijing.The maximum radioactivity concentration of 131I ( 5.89 mBq/m3 ) was detected at 22 d after the accident.The radioactivity concentrations of 137Cs and 134Cs were surveyed forming their corresponding peaks at 20 d after the accident,but they were one magnitude lower than the peak value of 131I at least.In addition,the gross β radioactivity level in the water of Chao Bai-he river was verified to be in the range of 0.314 - 0.602 Bq/L. Conclusions The radioactive contamination due to Fukushima nuclear accident has not done visible harm to the public health in Beijing,but monitoring should be continued to observe the long-term effect of the accident.
