Three Years Since Japan Began Discharging Nuclear-Contaminated Water: Over 170,000 Tons Released Across 22 Rounds

Since August 24, 2023, Japan has been discharging nuclear-contaminated water from the Fukushima Daiichi Nuclear Power Station into the Pacific Ocean. As of August 24, 2026, Japan has completed a total of 22 rounds of discharge, with a cumulative volume of approximately 173,000 tons.

It is understood that the volume of water stored in on-site tanks has decreased by about 7% compared to before the discharge began. Tokyo Electric Power Company plans to increase the discharge volume of nuclear-contaminated water starting from the current fiscal year and has set a target to complete the decommissioning of the nuclear power plant by 2051.