Atmospheric dispersion and environmental consequences. Exposure from radioactive plume pathways

Per Hedemann Jensen

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    Abstract

    Methods are described for assessing early radiation doses due to atmospheric
    releases of radionuclides, i.e. inhalation and external exposure from the plume and from deposited activity. Data to be used in these assessments are presented. The purpose of the present work is to evaluate methods and data that could be used in emergency situations as well as for emergency planning purposes. The most important direct pathways following a release of airborne radionuclides to the atmosphere are the inhalation pathway and the external exposure pathway from ground-deposited activity. For long-lived radionuclides like 134Cs and 137Cs the committed effective external dose from deposited activity is 1-2 orders of magnitude larger than the committed effective dose from inhalation. Similarly, the committed effective dose from inhalation is 1-2 orders of magnitude larger than the external γ-dose originating directly from the plume.
    Original languageEnglish
    Place of PublicationRoskilde
    PublisherRisø National Laboratory
    Number of pages46
    ISBN (Print)87-550-1613-8
    Publication statusPublished - 1992
    SeriesRisø-M
    Number2849
    ISSN0418-6435

    Keywords

    • Risø-M-2849

    Cite this

    Jensen, P. H. (1992). Atmospheric dispersion and environmental consequences. Exposure from radioactive plume pathways. Risø National Laboratory. Risø-M, No. 2849