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

6 April 2011 Geoff Zeiss

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.

 

Geoff Zeiss

Geoff Zeiss

Geoff Zeiss has more than 20 years experience in the geospatial software industry and 15 years experience developing enterprise geospatial solutions for the utilities, communications, and public works industries. His particular interests include the convergence of BIM, CAD, geospatial, and 3D. In recognition of his efforts to evangelize geospatial in vertical industries such as utilities and construction, Geoff received the Geospatial Ambassador Award at Geospatial World Forum 2014. Currently Geoff is Principal at Between the Poles, a thought leadership consulting firm. From 2001 to 2012 Geoff was Director of Utility Industry Program at Autodesk Inc, where he was responsible for thought leadership for the utility industry program. From 1999 to 2001 he was Director of Enterprise Software Development at Autodesk. He received one of ten annual global technology awards in 2004 from Oracle Corporation for technical innovation and leadership in the use of Oracle. Prior to Autodesk Geoff was Director of Product Development at VISION* Solutions. VISION* Solutions is credited with pioneering relational spatial data management, CAD/GIS integration, and long transactions (data versioning) in the utility, communications, and public works industries. Geoff is a frequent speaker at geospatial and utility events around the world including Geospatial World Forum, Where 2.0, MundoGeo Connect (Brazil), Middle East Spatial Geospatial Forum, India Geospatial Forum, Location Intelligence, Asia Geospatial Forum, and GITA events in US, Japan and Australia. Geoff received Speaker Excellence Awards at GITA 2007-2009.

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