Total α and total β radioactivity level in atmospheric aerosol around Yangjiang nuclear power plant

Liying ZHEN; Jiajun ZHANG

doi:10.11889/j.0253-3219.2017.hjs.40.080301

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Total α and total β radioactivity level in atmospheric aerosol around Yangjiang nuclear power plant

NUCLEAR CHEMISTRY, RADIOCHEMISTRY, RADIOPHARMACEUTICALS AND NUCLEAR MEDICINE | 更新时间：2021-05-19

- Total α and total β radioactivity level in atmospheric aerosol around Yangjiang nuclear power plant
- NUCLEAR TECHNIQUES Vol. 40, Issue 8, Article number: 080301(2017)
- 作者机构：
  
  广东省环境辐射监测中心广州 510305
- 作者简介：
- 基金信息：
- DOI：10.11889/j.0253-3219.2017.hjs.40.080301
  CLC： TL12
- Received：17 March 2017，
  
  Revised：27 April 2017，
  
  Published：10 August 2017
- 稿件说明：
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Liying ZHEN, Jiajun ZHANG. Total α and total β radioactivity level in atmospheric aerosol around Yangjiang nuclear power plant[J]. Nuclear techniques, 2017, 40(8): 080301
DOI：

Liying ZHEN, Jiajun ZHANG. Total α and total β radioactivity level in atmospheric aerosol around Yangjiang nuclear power plant[J]. Nuclear techniques, 2017, 40(8): 080301 DOI： 10.11889/j.0253-3219.2017.hjs.40.080301.

摘要

核电厂周围环境气溶胶的总放射性水平是一项重点关注项目。为掌握阳江核电周围环境气溶胶中总α、总β放射性水平及变化趋势，自2014年1月，对阳江核电厂5 km范围内大澳和允泊的气溶胶总α、总β进行为期三年的采样监测，获得该核电厂5 km范围内气溶胶总α、总β活度浓度范围分别为0.01-0.35 mBq·m

-3

、0.05-2.46 mBq·m

-3

，年均值分别为0.07 mBq·m

-3

、0.65 mBq·m

-3

。受降雨影响，总α、总β放射性变化有明显的季节特征，总体呈现冬春季高、夏秋季低的特点。监测结果与对照点和本底调查进行比较，总α、总β活度浓度没有明显变化，初步判断阳江核电厂运行安全。

Abstract

Background

As an important content of radiation environmental monitoring in nuclear power plant

the atmospheric aerosol radioactive level has attracted much attention.

Purpose

This study aims to find out variation regularity and affecting factors of total α and total β in atmospheric aerosol 5 km around the Yangjiang nuclear power plant.

Methods

Radioactivity concentrations of total α and total β in the atmosphere aerosol of Daao village and Yunbo village monitoring stations were collected by a large flowrate data sampling instrument using particle trapping cellulose filter paper with more than 95% high efficiency

and measured using low background α/β measuring device in the date range from January 2014 to December 2016.

Results

The concentration ranges of total α and total β were 0.01-0.35 mBq·m

-3

and 0.05-2.46 mBq·m

-3

respectively. The annual average concentrations were 0.07 mBq·m

-3

and 0.65 mBq·m

-3

. The radioactivity concentrations of total α and total β reflected obvious seasonal variation-all of the maximum monitoring data occurred in the winter due to the influence of the rainfall.

Conclusion

Results indicate that there is no significant change of total α and total β in the atmosphere aerosol samples and the operation of the Yangjiang nuclear power plant is safe.

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references

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Lianjing QIN , Meili LI , Lan JIANG , . Radioactivity characteristics of atmospheric aerosol samples in Guangzhou . Nuclear Techniques , 2016 . 39 ( 9 ): 090501 DOI: 10.11889/j.0253-3219.2016.hjs.39.090501 http://doi.org/10.11889/j.0253-3219.2016.hjs.39.090501 http://www.j.sinap.ac.cn/hejishu/CN/abstract/abstract646.shtml .

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