Abstract. During the early phase of an accident with the release of
radioactive material to the environment at the local or transboundary scale, a
rapid and continuous system of information exchange, including real-time
monitoring data to competent authorities and the public, is critical for setting
up countermeasures. This information and data exchange must be carried out
in a harmonized and consistent manner to facilitate its interpretation and
analysis. After the Chernobyl accident in 1986, and in order to avoid
the competent authorities being unprepared again for a similar event, the European
Commission (EC) defined and put in place a directive (Council Decision
87/600/EURATOM, 1987) which essentially obliges a member state that decides to
implement widespread countermeasures to protect its population to notify the
European Commission without delay. The same Council Decision also specifies
that the results of radiological monitoring must be made available to the
European Commission and all potentially affected member states. Over the past 30
years, the European Commission has invested resources in developing and
improving a complete system to carry out this delicate task, currently
composed of two platforms: the European Community Urgent Radiological
Information Exchange (ECURIE) and the European Radiological Data Exchange Platform (EURDEP). This paper aims to increase knowledge of the latter
system as a valuable tool for understanding and analysing the radioactivity levels
in Europe. Commencing with background information, in this paper, we will
describe the EURDEP system in detail, with an emphasis on its status, data
availability, and how these data are diffused depending on the audience.
Within the scope of this publication, we describe an example of measurements
available in the EURDEP system, which to be used for scientific purposes. We
provide two complete datasets (air-concentration samples –
https://doi.org/10.2905/23CBC7C4-4FCC-47D5-A286-F8A4EDC8215F; De Cort et al.,
2019a; and gamma dose rates –
https://doi.org/10.2905/0F9F3E2D-C8D7-4F46-BBE7-EACF3EED1560; De Cort et al.,
2019b) for the recent radiological release of 106Ru in Europe, which
occurred between the end of September and early October 2017. Records stored
are publicly accessible through an unrestricted repository called
COLLECTION belonging to the JRC Data Public Catalogue (https://data.jrc.ec.europa.eu, last access: 1 July 2019).