TEPCO revises strontium data at Fukushima plant to record level

February 07, 2014

THE ASAHI SHIMBUN

Tokyo Electric Power Co. corrected its radioactivity readings for groundwater from a well at the crippled Fukushima No. 1 nuclear plant to a record-high 5 million becquerels of strontium per liter.
TEPCO officials said the strontium levels were gauged again because the previous data was wrong. They also said radioactivity readings for water taken from other wells before September were also likely erroneous.
The company had said 900,000 becquerels of beta-ray sources, including strontium, were detected in water taken on July 5, 2013, from the observation well near a water intake for the No. 2 reactor turbine building.


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Fukushima radiation levels underestimated by five times - TEPCO

Published time: February 08, 2014 07:03

AFP Photo / IAEA

TEPCO has revised the readings on the radioactivity levels at the Fukushima No. 1 nuclear plant well to 5 million becquerels of strontium per liter – both a record, and nearly five times higher than the original reading of 900,000 becquerels per liter.
Strontium-90 is a radioactive isotope of strontium produced by nuclear fission with a half-life of 28.8 years. The legal standard for strontium emissions is 30 becquerels per liter. Exposure to strontium-90 can cause bone cancer, cancer of nearby tissues, and leukemia.
Tokyo Electric Power Co. originally said that the said 900,000 becquerels of beta-ray sources per liter, including strontium - were measured in the water sampled on July 5 last year.
However, the company noted on Friday that the previous radioactivity levels had been wrong, meaning that it was also likely reading taken from the other wells at the disaster-struck plant prior to September were also likely to have been inaccurate, the Asahi Shimbum newspaper reported.
The Japanese company has already apologized for the failures, which they said were a result of the malfunctioning of measuring equipment.
TEPCO did not mention the radioactivity levels of other samples of both groundwater and seawater taken from between June and November last year – which totaled some 140.
However, the erroneous readings only pertain to the radiation levels measured in water – readings taken to measure the radiation levels in air or soil are likely to have been accurate.

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HAZMAT - Australia, State of New South Wales, Cliftleigh

Earth Watch Report  -  Hazmat

• Firefighters clean up a radioactive spill at a work site in Cliftleigh between Heddon Greta and Testers Hollow on Monday afternoon. Photo by Marina Neil

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HAZMAT

Australia

State of New South Wales, Cliftleigh

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HAZMAT in Australia on Monday, 20 January, 2014 at 10:02 (10:02 AM) UTC.

Description

A radioactive substance has been released into the soil at a new housing development in Cliftleigh. Six fire crews were called to the housing estate off Main Road at 5.30pm yesterday after a bulldozer ran over a densometer and smashed it and its radioactive substance into the ground. A densometer is a probe used in geotechnical engineering and it had been put in the ground to determine the depth of the soil. Firefighters said the device contained a small radioactive isotope which had broken during the impact from the earth moving machine. Firefighters wore protective gear and used specific equipment to measure the level of radioactive activity in the soil. They then treated the incident using HAZMAT techniques. Police were also called to the incident and set up an exclusion zone around the estate. One resident who witnessed the clean up, but did not want to be identified, said it was concerning that the radioactive substance had entered the soil. She was worried about the impact it would have on the environment. Another resident was worried the substance might have already damaged the soil.

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Crushed device raises radiation fear in Cliftleigh

By BELINDA-JANE DAVIS

Jan. 20, 2014, 10:20 p.m.

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• Firefighters clean up a radioactive spill at a work site in Cliftleigh between Heddon Greta and Testers Hollow on Monday afternoon. Photo by Marina Neil

A RADIOACTIVE substance has been released into the soil at a new housing development in Cliftleigh.

Six fire crews were called to the housing estate off Main Road at 5.30pm yesterday after a bulldozer ran over a densometer and smashed it and its radioactive substance into the ground.

A densometer is a probe used in geotechnical engineering and it had been put in the ground to determine the depth of the soil.

Firefighters said the device contained a small radioactive isotope that had broken during the impact from the earthmoving machine.

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