NARAHA, FUKUSHIMA PREF. – Tokyo Electric Power Co. said some 20,000 tons of radioactive water at the Fukushima No. 1 nuclear plant will be left untreated as of May, missing its cleanup target.
Tepco cited the presence of relatively high levels of seawater-derived substances, including magnesium, and therefore it will take several more months to treat that portion of the contaminated water. The affected water represents 3 percent of the 600,000 tons of tainted water stored at the plant.
The rest of the contaminated water is expected to be treated by that month using either the Advanced Liquid Processing System, or ALPS, which can drastically reduce levels of 62 radioactive substances, or another system capable of removing strontium-90, a radioactive isotope that is particularly harmful for human health.
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