The organisation set up to verify the Comprehensive Nuclear-Test-Ban Treaty (CTBT) has a global network of air samplers that monitor and trace the origin of around a dozen radionuclides, the radioactive elements released by atomic bomb blasts – and nuclea
RADIOACTIVE caesium and iodine has been deposited in Japan far from the Fukushima Daiichi nuclear plant, at levels that were considered highly contaminated after Chernobyl. Readings taken by the Japanese science ministry, MEXT, reveal high levels of caesi