Fukushima Daiichi: Radiation levels dropping inside plant and at plant perimeter

JAIF has reported radiation measurements within the plant and at the plant perimeter.

North of Service Building:

3054.0 μSv/h at 15:00, Mar. 20 (02:00:00 Sunday March 20 ET)

For a Canadian nuclear energy worker 17 hours of exposure to this level of radiation is equivalent to the annual permissable exposure of 50 mSv.

Previously reported radiation levels

at the plant’s headquarters building, located some 500 meters northeast of Unit 3,

2,625 μSv/hr at 8:30 on Sunday morning (19:30:00 Saturday March 19 ET).

~3,400 μSv/hr at 2:30 pm Saturday (01:30:00 a.m. Saturday March 19 ET)

500 meters northwest of the Fukushima Daiichi plant on Friday Mar 18 JST afternoon,

  • 1:50 PM 3,484 μSv/hr (12:50:00 a.m. Friday March 18 ET)
  • 2:50 PM 3,339 μSv/hr (1:50:00 a.m. Friday March 18 ET)

 

Radiation levels measured at the West Gate ( 1.1 kilometers west of Unit 3 )

  269.5 μSv/h at 05:40, Mar. 20 (04:40 p.m. Saturday March 19 ET)

Previously reported radiation levels at the west gate

  364.5 μSv/hr at 9:00 AM Mar 19 (20:00:00 Friday March 18 ET)

  830.8 μSv/hr at 8:10 AM Mar 19 (19:10:00 Friday March 18 ET)

  271 μSv/hr at 7:30 AM Mar 18 (06:30 p.m. Thursday March 17 ET)

  289 μSv/hr at 11pm Mar 17 (10:00:00 a.m. Thursday March 17 ET)

  292 μSv/hr at 8:40pm Mar 17 (07:40:00 a.m. Thursday March 17 ET)

  646.2μSv/h at 11:10am Mar. 17 (10:10 p.m. Wednesday March 16 ET)

 1472μSv/h at 16:20, Mar 16 (03:20 am Wednesday March 16 ET)

Radiation reading at the plant east gate

  304 μSv/h at 03:30, Mar. 19 (02:30:00 p.m. Friday March 18 ET)

  287 μSv/h at 12:00, Mar. 18 (23:00:00 Thursday March 17 ET)

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.

View article by Geoff Zeiss

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