チェルノブイリでの内部被ばくと土壌
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Seiichi Ushikubo
@sushikubo
@myen IAEA(2006) p138 "effective internal doses received by the rural population strongly depend on the dominating soil type in the village"
2013-03-20 08:31:23低汚染のチェルノーゼム土壌(black soil)の地域に住む人が、最初の15年間で受けた被ばく量は、ほどんどゼロ。
Seiichi Ushikubo
@sushikubo
@myen IAEA (2006) p138 "in black soil areas people received during the first 15 years after the accident ..."
2013-03-20 08:33:31
Seiichi Ushikubo
@sushikubo
@myen IAEA (2006) p138 "exposures ranging from almost zero in low contaminated areas ..."
2013-03-20 08:34:14Cs137の土壌汚染が 37 kBq/m2 のチェルノーゼム土壌の地域では、1 mSv (そのほとんどは 1986年分)。
Seiichi Ushikubo
@sushikubo
@myen IAEA (2006) p138 "... up to 1 mSv (most of it in 1986) in rural settlements with 37 kBq/m2 of 137Cs in the soil."
2013-03-20 08:34:49チェルノーゼム土壌に住む人たちに比べて、ジョールンポドゾル土壌(sandy, soddy–podzolic soils)に住む人たちの内部被ばくは、2から3倍。
Seiichi Ushikubo
@sushikubo
@myen IAEA (2006) p138 "In areas with sandy, soddy–podzolic soils, the dose was two to three times as much"
2013-03-20 08:35:40チェルノーゼム土壌の地域に住む人に比べ、泥炭土壌(peaty)に住む人が受ける内部被ばくは、桁の変化で多くなる。
Seiichi Ushikubo
@sushikubo
@myen IAEA(2006) "in areas with dominating peaty soils, internal dose was typically an order of magnitude larger than in black soil areas."
2013-03-20 08:37:20現時点で食物からの内部被ばく
チェルノーゼム：0.004 mSv/a
ジョールンポドゾル：0.04 mSv/a
泥炭：0.1 mSv/a
Seiichi Ushikubo
@sushikubo
@myen IAEA (2006) p138 "At present, the inhabitants of low contaminated areas are receiving from ingestion of local food .."
2013-03-20 08:40:13
Seiichi Ushikubo
@sushikubo
@myen IAEA (2006) "... up to 0.004 mSv/a in black soil areas, up to 0.04 mSv/a in sandy soil areas ..."
2013-03-20 08:40:52
Seiichi Ushikubo
@sushikubo
@myen IAEA (2006) "... and about 0.1 mSv/a in villages located in peaty soil areas."
2013-03-20 08:41:291986年から2000年までの 0.04 - 0.6 MBq/m2 の地域での積算の内部被ばく
チェルノーゼム土壌：1 - 12 mSv
ジョールンポドゾル土壌：3 - 30 mSv
泥炭土壌：8-120 mSv
Seiichi Ushikubo
@sushikubo
@myen IAEA (2006) p139 "For assessment purposes, soils are classified into three major soil types: ..."
2013-03-20 08:47:52
Seiichi Ushikubo
@sushikubo
@myen IAEA(2006) ".. black or chernozem soil; podzol soil (including both podzol sandy and podzol loamy soils); and peat–bog or peat soil.
2013-03-20 08:50:18
Seiichi Ushikubo
@sushikubo
@myen IAEA (2006) "In the settlements with 137Cs soil deposition of 0.04 – 0.6 MBq/m2, ..."
2013-03-20 08:51:20
Seiichi Ushikubo
@sushikubo
@myen IAEA (2006) "the mean internal effective doses accumulated from 1986 to 2000 ..."
2013-03-20 08:52:00
Seiichi Ushikubo
@sushikubo
@myen IAEA (2006) "... are in the range of about 1–12 mSv for black soil, 3–30 mSv for podzol soil and 8–120 mSv for peat soil."
2013-03-20 08:52:31