Fukushima Daiichi: Radioactivity concentrations in seawater near Unit 2 intake decreasing but remain high

Wednesday, April 06, 2011 21:50 TEPCO has reported new radioactive element concentrations in sea water neat the plant

Near the water intake of the Unit 2 reactor on Tuesday morning Apr 5

• 11,000 Bq/cm³  of iodine-131 (280,000 times higher than the legal limit)

Near the water intake of the Unit 2 reactor on Monday Apr 4 9am

• 200,000 Bq/cm³ iodine-131 (5 million times the legal limit)
• 1.1 million times the legal limit of cesium 137

Near the water intake of the Unit 2 reactor at 11:50 AM Saturday Apr 2

• 300,000 Bq/cm³ iodine-131  (7.5 million times the legal limit)

 

Near the water outlet of the Unit 5 and 6 reactors on Tuesday Apr 5

24 Bq/cm³ of iodine-131 (600 times higher than the legal limit)

 

330 meters south of the water outlet of the 4 reactors on Tuesday Apr 5

• 16 Bq/cm3 of iodine-131 (400 times the legal limit)

330 meters south of the plant Thursday, March 31 12:55

• 180 Bq/cm³ (180 000 Bq/liter) of iodine-131 Wednesday March 30 afternoon (4,385 times higher than the legal standard)
• Cesium-137 was recorded at a level 527 times higher than the legal standard.

 

Comments

[Concerned viewer]

Thank you so much for this information! Is there a data source for determining how the ocean currents are projected to disperse this? I have seen maps for jet stream projections, but not ocean currents.

[suggestivo]

If nitrogen is being injected into reactor 1 to prevent hydrogen explosion, couldn't that create nitric acid (HNO3) within the reactor containment vessel? Are any components at risk or subject to corrosion? There must also be a significant mound of NaCl and other seawater trace minerals in there too...