Between the Poles: Fukushima Daiichi: Radiation measurements at perimeter continue to fall

Geoff Zeiss

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The U.S. devotes an estimated $10 billion annually to locating underground infrastructure. Every construction project requiring excavation involves significant efforts in locating underground utilities prior to and during construction to reduce the risk of injuries and unexpected project delays. But this information is rarely shared and the location of underground infrastructure is recaptured over and over again. There are successful examples around the world where municipal and regional governments have helped enable a shared underground utility network database.
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BIM + geospatial interoperability would avoid another CAD + GIS quagmire
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Transmission line inspections for vegetation management and other purposes are essential in ensuring grid reliability and resilience. We saw the devastating effect of vegetation encroachment in the recent California fires, which in part have been blamed on failure to maintain properly cleared transmission lines. With drones that can cover great distances in a single flight and provide detailed and accurate aerial imagery of transmission lines and other infrastructure, it is now possible to almost completely automate this expensive process. Automating transmission line inspections for vegetation management using BVLOS drones not only saves money, but also could improve the resiliency and reliability of the transmission grid.

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April 07, 2011

Fukushima Daiichi: Radiation measurements at perimeter continue to fall

JAIF has reported recent radiation dosage measurements at the plant perimeter as of 15:00, Apr. 7th (02:00 am Thursday April 7 ET).

0.67 mSv/h (670 μSv/h) at the south side of the office building
108 μSv/h at the Main gate
43 μSv/h at the West gate

Previous measurements

09:00, Apr. 3rd (20:00 Saturday April 2 ET)

0.83 mSv/h (830 μSv/h) at the south side of the office building
127 μSv/h at the Main gate
59 μSv/h at the West gate

21:00, Mar. 31st (08:00 am Thursday March 31 ET)

0.94 mSv/h (940 μSv/h) at the south side of the office builiding
148 μSv/h at the Main gate
70 μSv/h at the West gate

21:00, Mar. 30th (8:00 am Wednesday March 30 ET)

1.00 mSv/h (1000 μSv/h) at the south side of the office building
156 μSv/h at the main gate
72 μSv/h at the west gate

15:00, Mar. 30th (02:00 am Wednesday March 30 ET)

1.05mSv/h (1050 μSv/h) at the south side of the office building
163 μSv/h at the main gate
75 μSv/h at the west gate

09:00, Mar. 30th (20:00:00 Tuesday March 29 ET)

1.05 mSv/h (1050 μSv/h) at the south side of the office building
169 μSv/h at the Main gate
78 μSv/h at the West gate

Earlier readings at the West Gate

120.0 μSv/h at 21:30, Mar. 28 (08:30 am Monday March 28 ET)
122.8 μSv/h at 15:30, Mar. 28 (02:30 am Monday March 28 ET)
132.5 μSv/h at the West gate at 16:00, Mar. 27 (03:00 am Sunday March 27 ET)

Posted at 07:03 PM in Electric Power, Environment, Fukushima Nuclear Incidents | Permalink

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Between the Poles

Geoff Zeiss

March 2023

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April 07, 2011

Fukushima Daiichi: Radiation measurements at perimeter continue to fall

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