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Japan:Cesium leveling out at the Fukushima reactor No.3

Monday, August 1, 2011

Laaska News  August 1,2011


The operator of the Fukushima Daiichi nuclear power plant said on Sunday that the level of radioactive cesium in seawater around the Number 3 reactor has shown no signs of increasing since Saturday.

Tokyo Electric Power Company, or TEPCO, has been constantly checking the level of radioactive substances at water intakes in the plant and offshore.

On Saturday, seawater collected near the water intake of the Number 3 reactor recorded 1.3 becquerels of cesium 134 per cubic centimeter, which is 22 times higher than the national legal limit.

Cesium 137 was 17 times the limit at 1.5 becquerels.
But the recorded level hasn’t changed since Friday.

In May, high levels of radioactive water were poured into the area around the intake and shortly afterwards cesium 134 levels 20,000 times higher than the legal limit were detected there. Levels of the radioactive substance have been decreasing since then.

In addition, cesium-131 was not detected from seawater collected from the intake of reactor Number 2 on Friday and Saturday, although it reached 7.5 million times the limit in April.

TEPCO says it conducted investigations at 4 other spots in coastal waters. It also said that radioactive cesium was detected in one of the coastal waters but was below the legal limit.

The utility says it believes that radioactive water is no longer leaking since levels of radioactive substances have stayed relatively flat.

 

 NHK.

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