The opposition in China and South Korea to Japan's release of slightly radioactive water into the sea stems from a distrust of Japanese data that supported by the International Atomic Energy Agency says the discharge does not affect public health. By next March 2% of the accumulated water will be released. In all 1.2 million tons are planned to be released over 30 years starting August 24, 2023. That water contains small quantities of radioactive tritium which Japan says is less than what Chinese nuclear plants release into the sea. TEPCO which manages the Fukushima plant decommissioning says it will post the data on release and level of radioactive material on its website with comparison to the levels seen as not affecting health that WHO has set.