Cesium-137, also known as Cs-137, was first released into the atmosphere during Oppenheimer’s Trinity test on July 16, 1945, which marked the detonation of the first atomic bomb.

Over time, cesium-137 has declined in most game animals, but wild boars’ radioactivity levels haven’t changed substantially. Their meat continues to exceed regulatory limits for consumption, in some ...

TEHRAN, Jun. 23 (MNA) – Five people were detained for trying to export a kilogram of radioactive cesium-137 to use it to the detriment of Russian interests during a special operation, the Russian ...

The Norwegian Radiation and Nuclear Safety Authority (DSA) has recorded an increase in radiation levels at the border with Russia. Traces of cesium-137 have been detected, The Barents Observer ...

Mining giant Rio Tinto issued an apology for the loss of the coin-sized silver capsule, which contains enough cesium-137 to send out 10 X-ray blasts every hour and fell somewhere along Western ...

The results of the experiments described here, however, seem to indicate that cæsium-137 can follow an alternative route from fall-out to man that under certain conditions could well be ...