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Japan:Excess radiation in northeast of Japan + Related Articles

Tuesday, November 15, 2011

Laaska News  Nov. 15,2011
Japan:Radioactive cesium may have reached Hokkaido
Radioactive material removed from Setagaya lot

Photo: RIA Novosti    

Excess radiation in northeast of Japan

Experts have determined that radiation levels in some areas of the northeast of Japan exceed the permissible limit for agricultural crops.

This follows from the information they have gathered on the radiation situation in Japan following the March 11th accident at the Fukushima nuclear power plant when Fukushima was hit by a powerful quake. E

xperts claim that foodstuffs produced in the areas that were the worst-hit by radiation can badly harm people’s health.

Noticeable growth in radiation levels has been reported from the Fukushima prefecture, and also from the neighbouring prefectures of Iwate, Miyagi, Yamagata, Niigata and Ibaraki.



Radioactive material removed from Setagaya lot


A radioactive substance detected in Setagaya Ward in Tokyo was removed on Tuesday. After a brief scare, it was found to be unrelated to the Fukushima nuclear disaster.

The substance was detected at a supermarket parking lot and nearby sidewalk in the ward last month.

Officials conducted work to remove the substance from the ground where the highest reading was registered.

They say a bottle-like object was found underground.

The science ministry says it is highly likely that the bottle contains radium 226, which was used for treating cancer and as an ingredient in luminous paints.



Japan:Radioactive cesium may have reached Hokkaido

A team of researchers says radioactive cesium discharged from the damaged Fukushima Daiichi nuclear plant may have contaminated soil in Hokkaido and areas of western Japan more than 500 kilometers from the plant.

The international team, including researchers from Nagoya University, simulated the spread of radioactive materials. They combined global atmospheric patterns with nationwide radioactive measurements taken over one month from March 20th, 8 days after a hydrogen explosion at the Fukushima plant.

The researchers say the results suggested that some cesium-137 had reached the northernmost island of Hokkaido, and the Chugoku and Shikoku regions of western Japan.

They say the radioactive material may have accumulated in the soil due to rain.

Cesium-137 has a half-life of 30 years.

But the research team says the pollution is not high enough to require decontamination.

The radiation density per kilogram reached 250 becquerels in eastern Hokkaido, and 25 becquerels in mountainous areas of western Japan.

Nagoya University professor Tetsuzo Yasunari says the simulation suggested cesium had dispersed across a wide area. He called for a nationwide testing of soil, and warnings of hot spots where radiation levels are high.


Laaska News.