Typhoon Man-yi hit Japan Monday, leaving two people dead and forcing the operator of the crippled Fukushima nuclear plant to release rainwater with low levels of radiation into the ocean.
Workers were pumping out water from areas near tanks storing radioactive water, from which leaks are believed to have seeped into groundwater.
“But we decided to release the water into sea as we reached a conclusion that it can be regarded as rainfall after we monitored levels of radiation,” TEPCO spokesman Yo Koshimizu said.
According to the spokesman, one litre of the water contained up to 24 becquerels of strontium and other radioactive materials — below the 30 becquerel per litre safety limit imposed by Japanese authorities for a possible release to the environment.
However, it was unknown how much water was released to sea under the “emergency measure,” Koshimizu said.