What is the discharge of the Fukushima nuclear power plant in Japan this time? Thread

#nuclear It is heavily polluted nuclear wastewater. What is nuclear wastewater? Simply put, nuclear wastewater is water used for cooling nuclear reactors in nuclear power plants. This water also contains radioactive isotopes, but the content is low and the half-life is short. It can be discharged after being treated up to the standard. The coolant that normally touches the nuclear fuel rods has been recycled in the nuclear reactor. Japan’s discharge of nuclear contaminated water this time is because the reactors of the Fukushima nuclear power plant were damaged before, and a large amount of cooling water in the nuclear reactors flowed out to pollute the cooling water outside. This nuclear wastewater contains a large number of radioactive elements with strong radioactivity and a very long half-life. , Random discharge will have an impact on the entire earth's ecology.