Abstract: Based on the monitoring data of total α and total β radioactivity levels of atmospheric aerosols in Taishan area from 2018 to 2022, there is no obvious correlation between the total α and total β in aerosols and the operation of Taishan nuclear power plant. The activity concentration of total α and total β in aerosols is related to dust weight. The greater the dust weight, the higher the activity concentration of total α and total β. The activity concentrations of total α and total β have obvious seasonal characteristics, which are high in winter and low in summer. The total β to total α ratio of aerosol is high in summer.

Key words: Total α, Total β, Total β to total α ratio, Aerosol, Taishan NPP