RADIATION PROTECTION BULLETIN ›› 2015, Vol. 35 ›› Issue (6): 17-22.

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210Pb and 210Po Activity Concentrations and Sources in Atmospheric Aerosol

Zhang Jing, Li Pengxiang, Li Zhou, Wei Xiaofeng   

  1. China Institute for Radiation Protection, Taiyuan, 030006
  • Received:2015-03-29 Published:2025-02-25

Abstract: 210Pb and 210Po, key nuclides in atmospheric aerosol, are mainly from decay of 222Rn inthe atmosphere. Their contributions to human dose cannot be overlooked definitely. A brief account about their activity concentration ranges in atmospheric aerosol is provided. As recommended in UNSCEAR reports, mean activity concentrationsof them in near surface atmosphere are 500 and 50 Bq/m3 respectively. The natural sources, as well as additional sources, of both nuclides are also analyzedand discussed.

Key words: Atmospheric aerosol, 210Pb, 210Po, Activity concentration, Source

CLC Number: 

  • X837