SOURCE: Above-Limit Cesium Detected in Compost at Tokyo Elementary School, Jiji Press, October 6, 2011
Tokyo’s Bunkyo Ward said Thursday that radioactive cesium exceeding the government limit has been detected in compost made at an elementary school.
The compost, made from fallen leaves at the school, had radioactive cesium of 1,488 becquerels per kilogram, higher than the 400 becquerels set by the government [...]
Five kindergartens and 20 elementary and junior high schools in the ward have been making compost [...]
“Radioactive cesium is believed to exist in three states: dissolved in water, loosely bonded to organic materials such as moss and leaves, or tightly bonded to rock such as silicate salt.” -Kunihiro Yamada, aprofessor of environmental science at Kyoto Seika University via Mainichi, Oct. 7
Published: October 7th, 2011 at 11:23 am ET