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    Stralingsniveaumetingen rond het terrein van de EPZ kerncentrale te Borssele in 2014

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    Authors
    Tanzi CP
    Series/Report no.
    RIVM rapport 2015-0093
    Type
    Report
    Language
    nl
    
    Metadata
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    Title
    Stralingsniveaumetingen rond het terrein van de EPZ kerncentrale te Borssele in 2014
    Publiekssamenvatting
    Het stralingsniveau aan de terreingrens van de kerncentrale in Borssele lag in 2014 onder het toegestane maximum. Dit blijkt uit controlemetingen van het RIVM. Het RIVM rapporteert jaarlijks of de kerncentrale aan de vergunningseis voldoet.

    Volgens de kernenergiewetvergunning moet de kerncentrale ervoor zorgen dat personen buiten de terreingrens een effectieve stralingsdosis ontvangen van ten hoogste 40 microsievert per jaar. Om dit te controleren wordt op acht punten op de terreingrens het stralingsniveau gemeten.

    Dit gebeurt met het door het RIVM beheerde MONET-meetnet. Van de meting wordt vervolgens de natuurlijke achtergrondwaarde afgetrokken. Om het resultaat te vergelijken met het toegestane niveau, wordt de zogeheten Actuele Blootstellings Correctiefactor (ABC-factor) toegepast. ABC-factoren hangen samen met de bestemming van het gebied waar de effectieve stralingsdosis kan worden opgelopen. Rond Borssele geldt voor de kerncentrale een ABC-factor van 0,2.

    Het RIVM rapporteert in opdracht van de Kernfysische Dienst van de Inspectie Leefomgeving en Transport. In dit rapport zijn de daggemiddelden van de metingen van de acht MONET-monitoren rond de kerncentrale in 2014 weergegeven. Ook wordt uitgelegd hoe voor elk meetpunt de natuurlijke achtergrondwaarde is bepaald. In 2014 was de hoogste waarde, na aftrek van de natuurlijke achtergrond, 1,7 microsievert per jaar. Na de toepassing van de ABC-factor, voor de toetsing van de vergunningslimiet, is de berekende maximale effectieve dosis 0,3 microsievert per jaar.

    In 2014, the radiation level at the site boundary of the Borssele nuclear power plant (NPP) was below the maximum permitted level. This is the conclusion of this report, which is based on measurements carried out by the RIVM on location.

    The permit, granted following the Dutch legislation on the use of nuclear energy, requires that the maximum effective dose received by persons outside the site boundary of Borssele NPP does not exceed 40 microsievert annually. Control measurements of the radiation level were therefore carried out at eight locations at the site boundary. This is done within the framework of the MONET monitoring network, which falls under the administrative management of the RIVM. The measurements are processed by subtracting the natural background value from the measured value. The result is then translated into the effective radiation dose for an individual, and the so-called Actuele Blootstellings Correctiefactor (ABC-factor) is applied. ABC-factors are closely linked with the specific use of the site where the effective radiation dose is calculated.

    RIVM is tasked to annually report on whether the NPP Borssele meets the criterion stipulated in the license by the Department of Nuclear Safety, Security and Safeguards of the Human Environment and Transport Inspectorate, Dutch Ministry of Infrastructure and Environment of the Netherlands. Both the daily averages of the eight MONET-monitors around the NPP Borssele and an explanation of how the background level at each measuring location was determined are provided in the report. In 2014, the highest value of all monitors, after correcting for the natural background level, was 1.7 microsievert per year. An ABC-factor of 0.2 for the site boundary of Borssele NPP has been set in the permit. This translates into a maximum effective dose of 0.3 microsievert per year, following the application of the ABC-factor, and allows comparison with the value stipulated in the permit.
    Publisher
    Rijksinstituut voor Volksgezondheid en Milieu RIVM
    Sponsors
    Autoriteit Nucleaire Veiligheid en Stralingsbescherming (ANVS)
    URI
    https://rivm.openrepository.com/handle/10029/583333
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