A bottle believed to have contained radium was found beneath the ground near a supermarket in Setagaya Ward, Tokyo, on Tuesday in the second such discovery since high levels of radiation were detected in the area last month, officials said.
A Setagaya official said the substance inside the bottle was highly likely to be radium-226. The bottle was found buried in soil at a spot where the radiation reading reached 170 microsieverts per hour.
Radium-226 has been used for medical procedures.
Read the rest of the story: Second tainted bottle found in Setagaya.
Tokyo’s Setagaya ward in the western part of the capital plans to run radiation tests in 258 locations following the discovery of radiation above safety levels that required partially blocking off a sidewalk.
Setagaya ward, which has a population of more than 840,000 people, plans to decontaminate the area after radiation levels as high as 2.707 microsieverts per hour were detected at the site in the Tsurumaki 5-chome area, according to a statement by the ward.
The 2.7 microsieverts an hour equates to a dose of 14.2 millisieverts per year, or more than 14 times the internationally recommended level for the general public, according to a Science Ministry formula.
Read the rest of the story: Tokyo Plans Radiation Checks After High Reading in Setagaya.