Published 1975 | Version v1
Report Metadata-only

Problems concerning the recommendation of a maximum permissible inhalation intake of short-lived radon-daughters

Creators

  • 1. Hahn-Meitner-Institut fuer Kernforschung Berlin G.m.b.H. (F.R. Germany)

Description

The applicability of the risk concept for the evaluation of a maximum permissible annual exposure (MPAE) to short-lived 222Rn-daughters in air is discussed on the basis of available data about lung cancer mortality among uranium miners. By comparison with other occupational risks and the background level of these nuclides in normal air a MPAE in the range of 2.5-5 WLM is derived which corresponds to a Rn-activity concentration of 20-40 pCi/liter in radioactive equilibrium with its daughters. Finally the relation between exposure and lung dose is discussed with respect to the importance of uncombined daughter atoms and the influence of ventilation. (orig.)

Abstract (German)

Die Anwendbarkeit des Risikokonzepts auf die Berechnung der maximalen jaehrlichen Belastung (MPAE) durch kurzlebige 222Rn-Toechter in der Luft wird auf der Grundlage vorhandener Daten ueber die Haeufigkeit von toedlichem Lungenkrebs bei Uranbergleuten diskutiert. Durch Vergleich mit anderen beruflichen Belastungen und dem Grundvorkommen dieser Nuklide in normaler Luft wurde eine MPAE von 2,5-5 WLM bestimmt, die einer Rn-Aktivitaetskonzentration von 20-40 pCi/l im radioaktiven Gleichgewicht mit seinen Toechtern entspricht. Zuletzt wird die Beziehung zwischen Belastung und Lungendosis im Hinblick auf unkombinierte Toechteratome und auf den Einfluss der Belueftung untersucht. (orig./AK)

Additional details

Publishing Information

Imprint Pagination
12 p.
Report number
GSF-S--226

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
6206804
Subject category
S61: RADIATION PROTECTION AND DOSIMETRY; S58: GEOSCIENCES; S63: RADIATION, THERMAL, AND OTHER ENVIRONMENTAL POLLUTANT EFFECTS ON LIVING ORGANISMS AND BIOLOGICAL MATERIALS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
DAUGHTER PRODUCTS; INTERNAL IRRADIATION; MAXIMUM INHALATION QUANTITY; MAXIMUM PERMISSIBLE EXPOSURE; MINERS; RADON 222; RECOMMENDATIONS; URANIUM ORES
Descriptors DEC
ALPHA DECAY RADIOISOTOPES; DAYS LIVING RADIOISOTOPES; EVEN-EVEN NUCLEI; HEAVY NUCLEI; IRRADIATION; ISOTOPES; NUCLEI; ORES; PERSONNEL; RADIOISOTOPES; RADON ISOTOPES; SAFETY STANDARDS

Optional Information

Notes
3 figs.; 25 refs. Separate print from Health physics problems of internal contamination p. 109-120. Available from ZAED.