Radioactive cesium has been detected in a 3-story reinforced concrete condominium built in Nihonmatsu City, Fukushima, last July.
Currently, 12 families are living in the condominium, including one family that moved there from the evacuation zone shortly after the March 11 nuclear disaster, TBS reported.
Officials say the cesium was detected in concrete made of stones that were left outside at a facility in Namie town within the 20-kilometer no-go zone around the Fukushima Daiichi nuclear power plant, TBS said.
The level of radioactive cesium was 1.24 microsieverts per hour in the wall of the first-floor apartment. The radiation level was lower on the 2nd and 3rd floors.
The company that operates the crushed stone facility said that after the March 11 disaster, it shipped crushed stones to 20 construction firms in Fukushima Prefecture last April and May, TBS reported.© Japan Today