The fusion process sees two hydrogen isotopes, such as tritium, fuse together under intense heat and pressure to form a ...

Tritium is naturally present in water and human bodies always contain trace amounts of it. Pure water consists of an oxygen (O) atom bonded to two hydrogen (H) atoms, so its chemical formula is H2O.

Tritium measurements will also be conducted twice a year in four beaches close to the Fukushima nuclear plant. TEPCO plans to strengthen its own monitoring of tritium in the water from April.