Over the next few days, after the Kuroshio Current passes near the coast of Fukushima, Japan, it will continue its northeastward movement, entering the waters off eastern Honshu, Japan, at 36.8 ˚N latitude and 145.0 degrees east longitude. The current will reach a maximum velocity of approximately 2.3 m/s in this area, flowing generally east-southeastward. It will then join the Kuroshio Extension Current, where it reaches a maximum velocity of approximately 2.4 m/s, flowing east-northeastward to merge with the North Pacific Current. Along the Fukushima coast, the current will slowly move northward, influenced by the north-south tidal movement and the Kuroshio Current.

　　In a seven-day forecast simulation, the discharged tritium-containing wastewater is generally affected by the Kuroshio Extension Current and the North Pacific Current, propagating eastward. The primary impact area is the waters east of Honshu, Japan, where the maximum value reaches 1x10^-4 Bq/L. A secondary impact area is the eastern Kuroshio Extension Current, where the maximum value reaches 1x10^-5 Bq/L. Furthermore, based on the 10^-7 Bq/L concentration line, the maximum eastward reaches approximately 165.5 degrees west longitude and the maximum southward reaches 19.5 ˚N latitude. With the discharge halted, the recently released tritium-containing wastewater, primarily influenced by the north-south tides along the Fukushima coast, has slowly spread northward, reaching a maximum concentration of 1x10^-3 Bq/L within a 50-km radius of the discharge port. Based on the 10^-7 Bq/L concentration line, the affected area extends approximately 4,626 km east of the discharge port and approximately 3,606 km north and south.

　　The 10^-7 Bq/L concentration line is still 1,561 km from Taiwan Island and will have no impact on the waters surrounding Taiwan in the next seven days.