Posiva publishes Working Reports and Posiva Reports. From the year 2006 nearly all the reports have been published on our webpage and they can be found in the databank. In the databank you can also find our Annual Reviews and some other publications as well. You can also find print-quality pictures and useful links in the databank.

Recent publications

Workreport 2018-8



Exposure Pathway Analysis for a Geological Disposal Facility for Radioactive Waste at the Olkiluoto Site


Hjerpe, T.



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A key step to make early in the safety case for disposal of radioactive waste is to evaluate potential exposure pathways, i.e. conduct an exposure pathway analysis. The aim is to identify site-specific exposure situations that might occur, now or in the future, and answer the question ‘is anyone at a given location exposed to a hypothetical contamination and, if so, under what conditions does this exposure occur?’

The main objective of the exposure pathway analysis conducted in this report is to give recommendations on which exposure pathways, related to exposure of humans, to include in the radiological impact analysis of a long-term safety assessment for  geological disposal of radioactive waste at the Olkiluoto site. A comprehensive list of exposure pathway cases, i.e. situations, relevant for the Posiva safety case, where exposure to radiation from repository-derived radionuclides might occur, is presented. The list contains 30 exposure pathway cases related to terrestrial environments and 13 cases related to aquatic environments. The result of the exposure pathway analysis is that 18 terrestrial and 6 aquatic exposure pathway cases are recommended to be addressed further in the Posiva safety case.


Radioactive waste, exposure pathways, safety case, safety assessment, Olkiluoto


WR 2018-08_web (pdf) (1.4 MB)


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