[Japan's nuclear sewage will no longer confirm tritium concentration before discharging into the sea] Caixin News Agency, December 24, Japan's Tokyo Electric Power Co. said the fourth round of nuclear contaminated water discharges, which will take place in February next year, will omit the step of confirming tritium concentration of radioactive substances before discharging. TEPCO said that the fourth round of nuclear contaminated water discharge will be different from the past three rounds, this time will be during the discharge, the flow of contaminated water in the pipeline to confirm the actual tritium concentration; no longer before the discharge of the contaminated water into a large tank, to confirm the concentration of tritium; the staff will be measured once a day to ensure the safety of the results of the measurement announced the following day. TEPCO explained that the past three discharges of nuclear contaminated water have been diluted as planned, and that there is actually no significant difference between the calculated and measured values. The Chinese side has repeatedly emphasized in the past that nuclear contaminated water has a complex composition and other radionuclides, which pose unpredictable hazards to the marine environment and human health.