To ensure Treaty compliance in the atmosphere, the IMS will operate a world-wide network of 80 atmospheric radionuclide stations. These will allow the identification of atmospheric explosions, as well as underground or underwater explosions that are close enough to the surface to vent gases and / or particulate debris into the atmosphere. The radionuclide network also provides information to aid in the detection, location and characterization of events detected by stations of the seismic, infrasound or hydroacoustic networks, either individually or in combination.

In Canada, responsibility for operating particulate and noble gas radionuclide stations lies with the Radiation Protection Bureau, Health Protection Branch, of Health Canada. Canada will contribute data from its 4-station National Radioactivity Monitoring Network, and will run a Certified Radionuclide Laboratory.

The following map shows the world-wide distribution of the IMS radionuclide network.

Radionuclide Station Radionuclide Laboratory