ID :
174747
Tue, 04/12/2011 - 08:05
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http://m.oananews.org//node/174747
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Radiation Dose 3 Times Safety Limit in Fukushima Pref.
Tokyo, April 12 (Jiji Press)--The cumulative dose of atmospheric radiation exposure reached 34 millisieverts in Namie, over three times the international safety limit, in a town in the 30-kilometer evacuation zone around the crippled nuclear power plant in Fukushima Prefecture, according to Japanese government estimates.
For the estimates announced Monday, the government's Nuclear Safety Commission calculated cumulative doses from March 12, a day after the massive earthquake and tsunami knocked out the nuclear plant, to April 5, on the assumption that a person stayed outdoors for eight hours a day.
According to the commission, if radiation levels remain the same, the cumulative dose at a place in Namie, 24 kilometers northwest of the Tokyo Electric Power Co. <9501> plant, will reach 313.9 millisieverts by March 11 next year, against the 100-millisievert limit set for emergency situations by the International Commission on Radioactive Protection and the International Atomic Energy Agency.
The Japanese commission said, however, that radioactive materials will be diluted over time and rained out.
Of 52 other Fukushima Prefecture places for which the commission made the calculations, the three-week cumulative doses are estimated at 1.7-20.3 millisieverts at six locations of Namie, 1.5-11.1 millisieverts at four of the nearby village of Iitate and 0.4-2.1 millisieverts at three of the prefectural capital city of Fukushima.
Estimated annual doses surpassed 20 millisieverts in 12 locations.
The commission has urged the government to include these places in its new evacuation zone announced on Monday, where residents are urged to leave the area in about a month.
The government has already evacuated residents within 20 kilometers of the plant while advising those between 20 and 30 kilometers to stay indoors or leave voluntarily.
For the estimates announced Monday, the government's Nuclear Safety Commission calculated cumulative doses from March 12, a day after the massive earthquake and tsunami knocked out the nuclear plant, to April 5, on the assumption that a person stayed outdoors for eight hours a day.
According to the commission, if radiation levels remain the same, the cumulative dose at a place in Namie, 24 kilometers northwest of the Tokyo Electric Power Co. <9501> plant, will reach 313.9 millisieverts by March 11 next year, against the 100-millisievert limit set for emergency situations by the International Commission on Radioactive Protection and the International Atomic Energy Agency.
The Japanese commission said, however, that radioactive materials will be diluted over time and rained out.
Of 52 other Fukushima Prefecture places for which the commission made the calculations, the three-week cumulative doses are estimated at 1.7-20.3 millisieverts at six locations of Namie, 1.5-11.1 millisieverts at four of the nearby village of Iitate and 0.4-2.1 millisieverts at three of the prefectural capital city of Fukushima.
Estimated annual doses surpassed 20 millisieverts in 12 locations.
The commission has urged the government to include these places in its new evacuation zone announced on Monday, where residents are urged to leave the area in about a month.
The government has already evacuated residents within 20 kilometers of the plant while advising those between 20 and 30 kilometers to stay indoors or leave voluntarily.
