Radioactivity in the Risø District July-December 2012

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    The environmental surveillance of the Risø environment was continued in July - December 2012. The mean concentrations in air were: 0.32±0.31 μBq m–3 of 137Cs, 3.04±0.99 mBq m–3 of 7Be and 0.22±0.18 mBq m–3 of 210Pb (±1 S.D.; N = 26). The depositions by precipitation at Risø in the second half of 2012 were: 0.039 Bq m–2 of 137Cs, 615 Bq m–2 of 7Be, 40.3 Bq m–2 of 210Pb and < 0.6 kBq m–2 of 3H. The average background dose rate (TLD) at Risø (Zone I) was 54 nSv h–1 compared with 58 ± 8 nSv h–1 (±1 S.D.; N = 3) in the four zones around Risø.

    Original languageEnglish
    PublisherDTU Nutech
    Number of pages24
    ISBN (Print)978-87-995321-5-5
    Publication statusPublished - 2013


    • DTU-Nutech-R-0005(EN)
    • DTU-Nutech-R-0005


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