Nuclear Techniques ›› 2016, Vol. 39 ›› Issue (9): 90501-090501.doi: 10.11889/j.0253-3219.2016.hjs.39.090501

• NUCLEAR PHYSICS, INTERDISCIPLINARY RESEARCH • Previous Articles     Next Articles

Radioactivity characteristics of atmospheric aerosol samples in Guangzhou

QIN Lianjing, LI Meili, JIANG Lan, SONG Haiqing   

  1. Guangdong Environment Radiation Monitoring Centre, Guangzhou 510305, China
  • Received:2016-05-13 Revised:2016-07-11 Online:2016-09-10 Published:2016-09-09

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 α,total β,210Pb,210Po and 7Be in the atmosphere of Guangzhou urban were determined from January 2014 to December 2015.Results: The annual average concentrations of total α,total β,210Pb,210Po and 7Be 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,210Pb,210Po appeared in February,and 7Be was in January.Conclusion: The radioactivity concentrations reflected obvious seasonal trends.210Pb,210Po and 7Be had the strong correlation with PM10 and PM2.5.210Pb,210Po intended to be absorbed on PM2.5 rather than PM10,while 7Be showed an opposite result.

Key words: Atmospheric aerosol, Radioactivity concentration, Correlation, PM10, PM2.5

CLC Number: 

  • TL12