Numerous organisations were present at this meeting and the renewal of several grants from different organisations was announced. Participants from different organisations raised several issues regarding ICRP conduct which included desires for increased transparency with regards to publications and retaining concrete recommendations for governments.
The process of electing new Commission members and executive positions was discussed and agreed upon. The election would take place in the 1981 Japan meeting. Invitations for Committee memberships would be also decided in Japan.
The Commission received work updates from Committees 1-4 regarding progress on reports. The following decisions were reached by the Commission.
C1 – The Commission released two statements regarding recent estimates of Radiation Risk and Dose Limits for the Lens of the Eye based on discussions held with C1. With respect to dose in the eye, the Commission agreed to lower the yearly max dose from .3 Sv to .15 Sv and with respect to radiation risk, the Commission announced that new information does not require for changes in risk factors for radiation induced effects. Finally the Commission approved the creation of a new TG on Non-Stochastic Effects of Radiation.
C2 – The Commission was generally pleased with C2’s current work but did discuss possibly adding a radiologist to the Committee.
C3 – Plans were announced regarding revision of ICRP-15,16,21 and 17.
C4 – The Commission requested the creation of TGs ICRP 7, 10, 10A, and Protection of the Public in the Event of Radiation Accidents.
The Commission discussed the draft report on Exposure Limits for Radon and released a statement regarding information presented in the report. The statement included setting limits for inhalation of Radon-222 daughters (0.02 J per year), and explaining the need for limits to be reduced if workers are exposed to external radiation or ore dust. The Commission asked several ICRP members to create a report explaining where ICRP-24 will need to be revised to become compliant with recent findings.
Additional discussions were held regarding the topics of lifetime dose limits vs annual dose limits and their possible impact on health. This was considered an important topic to be discussed at future meetings.
The Commission made several statements on many topics, with one important statement related to criticisms by outside organisations on ICRP’s exclusion of non-fatal cancers and hereditary causes of cancers in its risk calculations.
The Assessment of an Index of Harm was decided to be brought to attention of relevant national and international authorities.
from Radon and briefly discussed Lifetime Dose for Radiation Workers, a discussion to be continued at the next meeting.