She believes that actual harm will occur in the future although the Japanese government and related agencies refer to the potential damage to human and environmental health as "baseless rumors".

"The Japanese government is trying to release the water that already contains a lot of radioactive substances by just letting it flow into the ocean. I believe this is not just an issue for Japan, but something that will affect everyone around the world," said Hiroshi Asano, a 70-year-old Tokyo resident.

"The truth is: there's still space within the nuclear power plant premises to set up large tanks to store nuclear contaminated water. The government says there isn't, but that's a lie," Asano said.

He urged the government to quickly develop technologies that can truly process nuclear contaminated water and store the contaminated water within Japan until then.