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Japan:High levels of radiation found in remote areas

Sunday, September 11, 2011

Laaska News  Sept. 11,201

Japan’s science ministry has compiled a map showing radiation levels in Fukushima and 4 surrounding prefectures, based on the results of an aerial survey.

Removal of radioactive substances will be required in the affected areas.

In the map, levels of radioactivity at locations one meter above the ground are highlighted in different colors.

Red is for areas where the radiation level is 19 microsieverts per hour or higher.

The red band spreads from the crippled Fukushima Daiichi nuclear power plant to the northwest and extends about 30 kilometers.

Areas with radiation levels of 3.8 microsieverts per hour or above are highlighted in yellow. The figure translates to above 20 millisieverts per year, a threshold in designating an evacuation zone. The yellow area extends beyond the current evacuation zone.

Light green shows levels between 0.5 and one microsieverts per hour. They still are far beyond the annual level of one millisievert which is believed to cause no harm to people. Much of Fukushima Prefecture, southern parts of Miyagi Prefecture, and northern parts of Tochigi and Ibaraki prefectures lie in this zone.

NHK.
Laaska News.
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