Fukushima I Nuke Plant: 154 Terabecquerels Per Day

(Correction: The previous estimate was 1 terabequerel per hour, not per day. So, per day would be 24 terabequerels.)

NOTE: This Blog link is by a courageous Japanese person,in Japan.

of radioactive iodine and cesium still spewing out of the plant, Japan's Nuclear Safety Commission now admits.

On April 12 during the joint press conference with Nuclear and Industrial Safety Agency (NISA) where they jointly announced the Fukushima I Plant accident was INES Level 7, the Commission assured the world that said that the release of radioactive materials from the plant had decreased to less than 1 terabecquerel per hour, or 24 terabecquerels per day.

It took the Commission 11 days to go from 24 terabecquerels per day to 154 terabecquerels per day. They say they miscalculated. What else have they, all nuclear experts, miscalculated?

From Yomiuri Shinbun (9:15PM JST 4/23/2011):

The Nuclear Safety Commission under the Prime Minister's Office disclosed on April 23 that the amount of radioactive materials being released from the TEPCO Fukushima I Nuclear Power Plant was 154 terabecquerels per day

NOTE: (1 tera is 1 trillion) as late as April 5 when the amount being released was considered stabilized.

On April 5, the estimated amount of radioactive materials released from Fukushima I Nuke Plant was 0.69 terabecquerels/hour for iodine-131 and 0.14 terabecquerels/hour for cesium-137. When the numbers were recalculated according to the INES method (converting cesium amount into iodine equivalent), the amount released turned out to be 6.4 terabecquerels/hour (which was 154 terabecquerels per day. Previously, the Nuclear Safety Commission had simply added the numbers for iodine-131 and cesium-137, and announced it was less than 1 terrabecquerel per hour.