Cesium emission from reactor 2 increased 700%
Cesium emission from reactor 2 became 7 times much as March.
It was 7 million Bq/h, which is almost the same level as October of 2011 (10 million Bq/h).
Tepco comments it was measured in the situation where dust is not blown up, major delivery entrance was closed.
No explanation is given by Tepco.