Friday, February 14, 2014

Tepco sat on record high strontium-90 readings

So much for restoring confidence in Tepco's management of the Fukushima cleanup:

The operator of Japan's wrecked Fukushima nuclear plant knew about record high measurements of a dangerous isotope in groundwater at the plant for five months before telling the country's nuclear watchdog, a regulatory official told Reuters.
Tokyo Electric Power Co (Tepco) said late on Wednesday it detected 5 million becquerels per liter of radioactive strontium-90 in a sample from a groundwater well about 25 meters from the ocean last September. That reading was more than five times the broader all-beta radiation reading taken at the same well two months earlier.
A Tepco spokesman said there was uncertainty about the reliability and accuracy of the September strontium reading, so the utility decided to re-examine the data. [my bolding]

Of course they had uncertainty, but I wonder how much of the uncertainty was based on the technology and how much on the politics.

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