Author Archives: mitnse

Regulatory Limits on Radiation Dose

Safety Limits: What are they? How are they determined? Much of the discussion concerning radiation levels and radioactive material releases has been presented in the context of safety limits set by a regulator. Examples of such limits include the I-131 … Continue reading

Posted in Radiation Protection

News updates, April 6, 2011

News Brief, 4/6/11 TEPCO has reported that as of 5:38 AM JST, the leakage of water from Unit 2’s supply cable pit has stopped. Before and after photos supplied by the IAEA are shown below: After it was found that … Continue reading

Posted in Fukushima

News brief, April 4

News Updates, 4/4/11 TEPCO has identified a potential pathway by which water from Unit 2 may have been leaking into the Pacific Ocean. This pathway consists of a 20 cm crack in the concrete wall of a pit which holds … Continue reading

Posted in Fukushima

News updates, April 1

News Brief, 4/1/11 Status of Reactors Efforts are still underway to pump water from the turbine buildings of the reactors. Water in the turbine buildings is being pumped directly into the reactors’ condensers. The IAEA reported yesterday that the condenser … Continue reading

Posted in Fukushima

News Updates, March 30

News Brief, 3/30/11 Plutonium Found in Soil Soil samples collected from five locations around the Fukushima Daiichi site were found to contain trace amounts of plutonium. These trace amounts are in roughly the same quantities as the amounts left behind … Continue reading

Posted in Fukushima

message from mitnse

Many thanks to everyone who has been visiting our blog and sending us questions and comments since we started up a little over two weeks ago. Now that information on the situation at the Fukushima Daiichi power plant is becoming … Continue reading

Posted in Uncategorized | 2 Comments

News Updates, March 26

Plant Status The IAEA has shared that as of 05:15 UTC, Japanese authorities reported the following about the conditions of the six reactors: Unit 1: Workers have restored lighting in the control room, and recovered the ability to use some … Continue reading

Posted in Fukushima