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发帖数: 3 | 1 http://search.japantimes.co.jp/cgi-bin/nn20110627a2.html
Monday, June 27, 2011
Fukushima residents' urine now radioactive
Kyodo
More than 3 millisieverts of radiation has been measured in the urine of 15
Fukushima residents of the village of Iitate and the town of Kawamata,
confirming internal radiation exposure, it was learned Sunday.
Both are about 30 to 40 km from the Fukushima No. 1 power plant, which has
been releasing radioactive material into the environment since the week of
March 11, when the quake and tsunami caused core meltdowns.
"This won't be a problem if they don't eat vegetables or other products that
are contaminated," said Nanao Kamada, professor emeritus of radiation
biology at Hiroshima University. "But it will be difficult for people to
continue living in these areas."
Kamada teamed up with doctors including Osamu Saito of Watari Hospital in
the city of Fukushima to conduct two rounds of tests on each resident in
early and late May, taking urine samples from 15 people between 4 and 77.
Radioactive cesium was found both times in each resident.
Radioactive iodine was logged as high as 3.2 millisieverts in six people in
the first survey, but none was found in the second survey.
The data indicate accumulated external exposure was between 4.9 and 13.5
millisieverts, putting the grand total between 4.9 to 14.2 millisieverts
over about two months, they said.
"The figures did not exceed the maximum of 20 millisieverts a year, but we
want residents to use these results to make decisions (to move)," said
Kamada. |
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