Japanese officials said the small radiation hotspot in Tokyo was not connected to the Fukushima Daiichi nuclear plant.
It most likely came from old bottles in an empty house’s basement. The radioactivity from the bottles exceeded the safety guidelines on a low-dose counter.
Police are investigating the possible illegal possession of radioactive materials.
Local residents had ben told the radiation was not a threat to their health.
TOKYO (majriox news) — Higher levels of radiation were detected Oct. 6 on a sidewalk in Setagaya ward, the western part of Tokyo, recording levels of 2.70 microsieverts per hour, which is 11 times higher than the safety guidelines, according to Setagaya officials.
It was discovered after residents who regularly monitor radiation levels recorded higher readings and reported it to local officials.
As a precaution and to ease the anxiety of residents the road, which elementary students use to walk to school, has been closed.
Ward officials will check more than 258 areas, including sand boxes at parks, throughout November.
Earlier today it was reported that the local government of Yokohama was investigating radiation that was detected on an apartment rooftop. Tests conducted by a private research institute found more than 60,000 becquerels of radioactive cesium per kilogram (2.2 pounds) of sediments. The higher level was first discovered by local residents.
Meanwhile, the central government is investigating where the radioactive material came from.