Workers at the damaged Fukushima nuclear power plant in Japan pumped less radioactive water from storage tanks into the Pacific Ocean in order to free up space for more highly radioactive water, despite the water being up to 500 times the legal limit for radiation levels. This was done while Japan works to decontaminate the nuclear complex and obtain a Russian ship used to dispose of liquid nuclear waste. There are concerns from some about the environmental effects of dumping the radioactive water into the ocean, though others believe the ocean can dilute it given its size.