Radioactivity characteristics of atmospheric aerosol samples in Guangzhou

Lianjing QIN; Meili LI; Lan JIANG; Haiqing SONG

doi:10.11889/j.0253-3219.2016.hjs.39.090501

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Radioactivity characteristics of atmospheric aerosol samples in Guangzhou

NUCLEAR PHYSICS, INTERDISCIPLINARY RESEARCH | 更新时间：2021-05-24

- Radioactivity characteristics of atmospheric aerosol samples in Guangzhou
- NUCLEAR TECHNIQUES Vol. 39, Issue 9, Article number: 090501(2016)
- 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.0253-3219.2016.hjs.39.090501
  CLC： TL12
- Received：13 May 2016，
  
  Revised：11 July 2016，
  
  Published：2016-09
- 稿件说明：
移动端阅览
Lianjing QIN, Meili LI, Lan JIANG, et al. Radioactivity characteristics of atmospheric aerosol samples in Guangzhou[J]. Nuclear techniques, 2016, 39(9): 090501
DOI：

Lianjing QIN, Meili LI, Lan JIANG, et al. Radioactivity characteristics of atmospheric aerosol samples in Guangzhou[J]. Nuclear techniques, 2016, 39(9): 090501 DOI： 10.11889/j.0253-3219.2016.hjs.39.090501.

摘要

对广州地区大气环境气溶胶样品的总

、总

、

210

Pb、

210

Po和

Be进行了为期两年采样监测，分别得到各监测项目年平均放射性活度浓度分别为 0.12 mBq·m

-3

、0.75mBq·m

-3

、0.93 mBq·m

-3

、0.23 mBq·m

-3

、3.16mBq·m

-3

。总α、总β、

210

Pb、

210

Po和

Be活度浓度变化有明显的季节性特征：总α、总β、

210

Pb、

210

Po、

Be活度浓度最低值均出现在9月，总α、总β活度浓度最高值出现在11月，

210

Pb、

210

Po活度浓度峰值出现在2月，

Be活度浓度峰值出现在1月，总体呈现出冬春高、夏秋低的特点；

210

Pb、

210

Po、

Be与PM10、PM2.5有较强正相关性，但

210

Pb、

210

Po倾向于与比表面积更大的PM2.5结合，而

Be更易附着在较大粒径的PM10 上。

Abstract

Background

As an important content of radiation environmental monitoring in China

the atmospheric aerosol radioactive level has attracted much attention.

Purpose

This study aims to find out variation regularity and affecting factors of radionuclide concentrations in atmospheric aerosol.

Methods

The radioactivity concentrations of total

total

210

Po and

Be in the atmosphere of Guangzhou urban were determined from January 2014 to December 2015.

Results

The annual average concentrations of total α

total β

210

Po and

Be were 0.12mBq·m

-3

0.75 mBq·m

-3

0.93 mBq·m

-3

0.23 mBq·m

-3

3.16 mBq·m

-3

respectively.All of the minimum monitoring data occurred in September

however

the lowest activity period for each item was not the same

and the total α

total β appeared in November

210

Po appeared in February

and

Be was in January.

Conclusion

The radioactivity concentrations reflected obvious seasonal trends.

210

Po and

Be had the strong correlation with PM10 and PM2.5.

210

Po intended to be absorbed on PM2.5 rather than PM10

while

Be showed an opposite result.

关键词

Keywords

references

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