Derivation of the maximum permissible activity concentrations in exhaust air

H. Wildermuth

doi:10.1515/kern-2002-0010

Article

Derivation of the maximum permissible activity concentrations in exhaust air

H. Wildermuth

Published/Copyright: March 15, 2022

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From the journal Kerntechnik Volume 67 Issue 1

Abstract

Within the scope of the amendment of the Radiation Protection Ordinance, it became necessary to lay down new limit values, as a result of both the modifications made in the stipulations of the EU directives, and improvements in the level of scientific and technological advancement. This led, at the same time, to the necessity of recalculating the permitted levels for activity concentrations in exhaust air from applications involving isotopes (mostly from medical installations). The following article provides an overview of the approach applied in the recalculation of the permitted activity concentration levels in exhaust air for around 800 radionuclides, along with a comparison of the limit values which have been applied up until the present.

Abstract

Im Rahmen der Novellierung der Strahlenschutzverordnung waren aufgrund geänderter Vorgaben durch EU-Richtlinien und dem fortgeschrittenen Stand von Wissenschaft und Technik Grenzwerte neu festzulegen. Damit waren auch die zulässigen Aktivitätskonzentrationen in der Fortluft von Isotopenanwendern (meistens medizinische Einrichtungen) neu zu berechnen. Im folgenden Artikel wird die Vorgehensweise bei der Neuberechnung der zulässigen Aktivitätskonzentrationen in Fortluft für ca. 800 Radionuklide und ein Vergleich mit bisher gültigen Grenzwerten gezeigt.

Acknowledgement

The work consolidated in this article is the result of suggestions made by the Federal Ministry of Environment, Nature Conservation and Nuclear Safety, and was carried out in close scientific cooperation with the Committee of Radioecology of the German Commission on Radiological Protection. Special thanks are due the members of the Working Group “Adjustment of the Principles of Calculation in Radioecology” (Anpassung der radioökologischen Berechnungsgrundlagen) of the Committee of Radioecology for their numerous and valuable contributions to the discussions concerning the scenarios, assumptions, and parameters employed.

References

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Received: 2001-09-05

Published Online: 2022-03-15

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https://doi.org/10.1515/kern-2002-0010