Negative correlation between the number of sunspots and the occurrence of 7Be and 22Na in the surface air and their contribution to radiation doses

Drago Brodnik, Dennis Glavič-Cindro, Dennis Glavič-Cindro, Marijan Nečemer, Petra Maver-Modec, Toni Petrovič, Tim Vidmar, Branko Vodenik, Benjamin Zorko

    Research outputpeer-review


    This article presents yearly mean concentrations of cosmogenic radionuclides 7Be and 22Na occurring in dry and wet depositions (fallout) and aerosols. Time dependencies negatively correlated with the yearly mean number of sunspots. Activity concentrations of 7Be and 22Na in aerosols in the surface air had a correlation of near-unity. 7Be in aerosols exhibited a smoother time dependence than 22Na, implying that the production of 22Na is more sensitive to the solar activity than the production of 7Be. The effect of the measured doses on the general population through internal and external exposure to radiation from cosmogenic radionuclides was small.
    Original languageEnglish
    Pages (from-to)290-295
    Number of pages6
    JournalArchives of Industrial Hygiene and Toxicology
    Issue number4
    StatePublished - 1 Dec 2019

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