| 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.日本福岛核事故所致北京地区放射性污染的监测与分析[J].中华放射医学与防护杂志,2012,32(2):129-132 |
| 日本福岛核事故所致北京地区放射性污染的监测与分析 |
| Monitoring and analysis of radioactive contamination in Beijing following the Japanese Fukushima nuclear accident |
| 投稿时间：2012-01-31 |
| DOI：10.3760/cma.j.issn.0254-5098.2012.02.006 |
| 中文关键词: 日本福岛核事故|放射性污染|北京地区|应急监测 |
| 英文关键词:Japanese Fukushima nuclear accident|Radioactive contamination|Beijing|Emergency monitoring |
| 基金项目: |
|
| 摘要点击次数: 3560 |
| 全文下载次数: 2335 |
| 中文摘要: |
| 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β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。 |
| 英文摘要: |
| 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. |
| HTML 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|