Radiation Level Down at Fukushima Daiichi Front Gate

15 March 2011 Geoff Zeiss

At 7:30 am March 15 Eastern Time on NHK government spokesman Edano reported that the radiation measured at the Fukushima Daiichi front gate was 596.4 microsieverts/hour. At this rate it would take 5 hours to get the dosage equivalent to a year’s exposure to ambient background radiation (3 milliSieverts).

This is much less than the over 11,000 microsieverts/hr recorded earlier.

It was also reported that the Unit 1 and Unit 3 reactor containment vessels have not been damaged.  There is concern about the Unit 2 reactor containment vessel.

The other concern is the spent fuels stored in spent fuel pits which apparently caused the fire at Unit 4.  NHK reported concern about Units 5 and 6.

Radiation levels in Tokyo are reported to be low and not a risk to human health.

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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