A mysterious black substance five times more radioactive than the Chernobyl-Belarus
mandatory evacuation zone was discovered 4 kilometers from the center of Tokyo, the Hirai Station. The mystery radioactive black substance discovered close to Tokyo on the heels of the discovery of Cesium in Fukushima Prefecture 122 times higher than in Belarus evacuation zone.
The extremely radioactive black substance was found at 4km from the center of Tokyo.
In 10 minutes walk from Hirai station of JR Sobu line, where is about 4 km from Tokyo station, 5 km from Imperial Palace
black substance was found in several places near the play ground of a public estates.
A local citizen’s group found this and had it analyzed by Prof. Yamauchi from Kobe university. He measured 243,000 Bq/Kg of cesium and the surface dose was 2?Sv/h.
Mr. Ishikawa, the chairman of citizen’s group states, the black substance is now everywhere in Tokyo, and it moves by wind or rain.
Roughly estimating, the soil around the black substance is contaminated as 15,600,000 Bq/m2 (cesium134/137).
In Belarus, the place where is more contaminated than 1,480,000Bq/Kg (cesium137) was defined as mandatory evacuation area.
(Source: Fukushima Diary)