Taeko Fujimura with Japan's National Federation of Agricultural Cooperative Associations, also known as Zen-Noh, said the ocean discharge "cannot be forgiven" and was "extremely unreasonable."

"Have you now obtained the understanding of the relevant parties? Have you properly explained your actions to them?" Fujimura shouted the questions amid the crowd of protesters.

The Zen-Noh official told Xinhua that in Zen-Noh's previous talks with TEPCO, it clearly stated that apart from tritium, there are various other radioactive substances that will remain in the tainted water in large amounts even after the second round of ALPS treatment.

Fujimura stressed that the ocean discharge, which is to continue for at least 30 years, will cause significant environmental damage. "It will pollute the sea, the marine life within it, the environment, and the Earth."

"We, as the agricultural cooperative, cannot allow such destructive actions by TEPCO. Even if we have been deceived for the time being, we must stop the ocean discharge as soon as possible," she added.