John Harrison

TL;DR: The review supports an association between circulatory disease mortality and low and moderate doses of ionizing radiation, and suggests that overall radiation-related mortality is about twice that currently estimated based on estimates for cancer end points alone.

TL;DR: The 2007 Recommendations of the International Commission on Radiological Protection introduced changes that affect the calculation of effective dose, and implied a revision of the dose coefficients for internal exposure, published previously in the Publication 30 series and Publication 68.

TL;DR: An evaluation of published human and animal data and models developed for the estimation of alpha radiation doses from (210)Po and the induction of potentially fatal damage to different organs and tissues suggests that bone marrow failure is likely to be an important component of multiple contributory causes of death occurring within a few weeks of an intake by ingestion.

TL;DR: Although further work is desirable to quantify better the risk at low doses and following protracted exposures, along with research into the mechanistic basis for radiation cataractogenesis to inform selection of risk projection models, the HPA endorses the conclusion reached by the ICRP in their 2011 statement that the equivalent dose limit should be reduced from 150 to 20 mSv per year.

TL;DR: This review updates material prepared for the UK Government Committee Examining Radiation Risks from Internal Emitters (CERRIE) and also refers to the new recommendations of the International Commission on Radiological Protection (ICRP) and other recent developments.