Monitoring was initially conducted for radioactive fallout from nuclear weapons tests in the northern hemisphere and then for fallout from the French nuclear weapons testing programme in the Tuamotu Archipelago. When the French atmospheric radiation testing programme was terminated in 1974, monitoring continued for residues from atmospheric tests and to detect any venting from the underground tests.
Latest report – 2023/2024
This report collates the results of the Monitoring Programme for the period 1 July 2023 to 30 June 2024. During the period of this report the activity concentrations detected by all monitoring regimes were well below those considered to constitute a radiological risk to human health.