Content updates
The content of the Help section has been updated, particularly regarding metrology concepts, to provide a better understanding of the differences between the SD (Decision Threshold) and the LD (Detection Limit)
In addition, the Foodstuff Controls page has been updated with 2025 data.
Laboratories approval update - July 2025
The liste of approved laboratories for environmental radioactivity measurements was updated the 1st of July. Retrieve this list on the ASNR website.
For more details, please consult the "Approval of laboratories section.
Dosimetric evaluation
The following table provides a summary of dose estimates due to emissions from installations that may be received by the population residing around these sites.
EdA 2025-2029 Agenda
The 2025-2029 inter-laboratories tests agenda is now awailable in the "Approval of laboratories" section, menu "The RNM"
Other Data Sources
ASNR – TELERAY Network
The website https://teleray.irsn.fr/ provides data acquired by all the ASNR ambient gamma radioactivity measurement stations (over 450), located in mainland France and the DROM-COM. These are dose equivalent rate measurements expressed in nSv/h (nanosieverts per hour) taken every 10 minutes by each station.
How is it mesured ?
This page presents the most commonly used techniques in environmental monitoring, particularly by contributors to the RNM.
2021-2023 Report of radiological state
The 2021-2023 report of french radiological state is now available in the "The publications" section, menu "The RNM"
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