Six months after Japan first began releasing treated water from the meltdown-stricken Fukushima No. 1 nuclear power plant into the Pacific Ocean, the issue continues to overshadow Tokyo's relations with China.

To address other countries' concerns about the impact of the release of treated water that contains radioactive tritium into the sea, the Japanese government has worked hard to offer explanations about the safety of the move.

Thanks to an endorsement by the International Atomic Energy Agency concerning the safety of the release, Tokyo has gained a certain level of understanding from the global community.