High anxiety as Japan takes another step toward releasing wastewater from crippled Fukushima nuclear plant into sea

Tokyo — The fishing industry around Japan's Fukushima coast expressed disappointment and resignation over the weekend as long-expected plans to start releasing treated wastewater into the ocean from the crippled Fukushima Daiichi nuclear power plant moved one step closer to reality. The drastic measure has been adopted as the only practical way out of a dilemma that's plagued the damaged plant for more than a decade.

Late last week, Japan's national nuclear regulator formally endorsed the plan to discharge more than 1 million tons of wastewater from the plant into the sea off Japan's Pacific coast. The water will be filtered first to remove about 60 radioactive isotopes, with the exception of tritium, which can't be extracted using existing technology.

After inspection and dilution with seawater, the water will be pumped out beyond Japan's fishing zones through a 0.6-mile-long undersea tunnel, which will be carved through ocean bedrock starting near the Fukushima Daiichi plant's reactor number 5.