| 孙小娜,王玉文,李仲修.乌鲁木齐市食品中总α和总β放射性水平初步调查与分析[J].中华放射医学与防护杂志,2016,36(1):51-55.Sun Xiaona,Wang Yuwen,Li Zhongxiu.Preliminary investigation and analysis of gross α and gross β natural background radiation levels in foods from Urumqi[J].Chin J Radiol Med Prot,2016,36(1):51-55 |
| 乌鲁木齐市食品中总α和总β放射性水平初步调查与分析 |
| Preliminary investigation and analysis of gross α and gross β natural background radiation levels in foods from Urumqi |
| 投稿时间：2015-06-07 |
| DOI：10.3760/cma.j.issn.0254-5098.2016.01.009 |
| 中文关键词: 总α放射性 总β放射性 食品 |
| 英文关键词:Gross α activity Gross β activity Food |
| 基金项目: |
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| 中文摘要: |
| 目的 通过对乌鲁木齐市部分食品中总α和总β放射性的调查,掌握当地部分食品总α和总β放射性基线资料。方法 采集谷类、蔬菜、水果、坚果、肉类和奶类等6类食品,将可食用部分进行样品前处理,采用MPC 9604低本底α、β测量仪,测定食品中总α和总β放射性。结果谷类、蔬菜、水果、坚果、肉类和奶类等的总α和总β放射性分别为0.88~10.80和22.20~148.67、1.17~24.24和21.41~318.84、1.44~4.89和43.90~112.67、17.49~43.72和287.81~747.40、3.04~19.77和41.55~164.51、2.07~2.94和44.07~59.02 Bq/kg。结论 乌鲁木齐市部分食品中天然总放射性与其他省市比较存在差异,推测为地域差异。为进一步掌握乌鲁木齐市食品中天然放射性的基线值,需要扩大样本量和种类继续进行动态的监测。 |
| 英文摘要: |
| Objective To establish the baseline data about gross α and gross β radioactivity in local foods through a preliminary investigation in Urumqi City. Methods The edible parts of six types of foods, including cereals, vegetables, fruit, nuts, meat and dairy food, were pretreated and sampled. MPC 9604 low background α and gross β measuring instrument was used for determination of gross α and gross β radioactivity. Results The natural gross α and gross β radioactivity in the cereal, vegetables, fruits, nut, meat, dairy food were 0.88-10.80 and 22.20-148.67 in cereals, 1.17-24.24 and 21.41-318.84 in vegetables, 1.44-4.89 and 43.90-112.67 in fruits, 17.49-43.72 and 287.81-747.40 in nut, 3.04-19.77 and 41.55-164.51 in meat, and 2.07-2.94 and 44.07-59.02 Bq/kg in milk, respectively. Conclusions There are some differences in the gross natural radioactivity between Urumqi and the other provinces and cities due to possible regional differences. In order to further ascertain baseline of natural radioactivity in food in Urumqi, larger sample sizes and more diverse food types are needed for purposes of dynamic monitoring. |
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