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埼玉県民専用スレ その75
[468]M7.74(埼玉県):2011/03/24(木) 07:50:12.25 ID:28W19RgF0
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>>458
360 :日出づる処の名無し:2011/03/24(木) 06:11:42.50 ID:1KJS46dI
WHO SITREP NO 14
Japan earthquake and tsunami Situation Report No. 14
23 March 2011
http://www.who.or.jp/index_files/JapanEarthquakeSitrep1423March2011.pdf

p14
The Nuclear Safety Commission of Japan, a unit of the Government of Japan established
the guideline value for restriction for intake of drinking water as:

I-131           300Bq/kg
Cesium-134, -137   200Bq/kg

WHOによると、この↑日本政府の暫定規制値は国際的な基準より厳しいものらしい
それとI-131は低比放射性物質(low specific activity)なので放射線のソースとはならないとも
核種ごとの国際的な基準は

I-131    3,000Bq/kg、
Cs-134  1,000Bq/kg
Cs-137  2,000 Bq/kg)

It should also be noted that the Japanese guideline value is an order lower than the internationally agreed
Operational Intervention Levels (OIL's) for I-131 (3,000 Bq/kg), Cs-134 (1,000 Bq/kg) and Cs-137 (2,000 Bq/kg).
Iodine-131 is not a significant source of radiation because of its low specific activity
(ref. IAEA General Safety Guide No. 2)
http://www-pub.iaea.org/MTCD/publications/PDF/Pub1467_web.pdf

これ↑のp41以下
TABLE 10. DEFAULT RADIONUCLIDE SPECIFIC OILs FOR FOOD, MILK AND WATER CONCENTRATIONS FROM LABORATORY ANALYSIS
に放射性核種ごとの暫定規制値が載ってる

*低比放射性物質(LSA:Low specific activity material)とは比放射能が低いため

1-0ch+ BBS 0.7.2 20130511_sukoshi-ijittayo _