購入年月 Purchase date: 2014 年 １月 (Jan. 2014) バンクーバーにて購入 Purchased in Vancouver 測定日時 Date Tested: 2014 年 ２月1１(Feb.11, 2014) 測定時間 Duration: 65000 秒(seconds)
検査機器 Detector: NaI ５"ｘ４"
試料重量 Sample weight: 0.995kg / 1 L
"The soya beans, used for our soya milk fabrication, are grown in Quebec, around 100km from our production plant in St-Hyacinthe. They are GMO free and certified Organic." ~Natura~ 『豆乳のため加工されている大豆は、St-Hyacintheにある製造康応から１００ｋｍほどのところのケベック産です。遺伝子組み換えがされておらず、オーガニックと認証されています。』～ナチュラ～
purchased in a local grocery store. The soy sauce was labeled as a product of Japan. No radioactive isotopes were detected that can be traced to the reactors at Fukushima. For comparison, the activity concentration of Potassium-40 (K-40) in the sample was approximately 100 Bq/L.
About internal exposure from Natural Radiation
Source from "Atomic Bomb and Nuclear Power Plant"
written by Eichiro Ochiai
K-40 and C-14 exist inside of every creatures including human, as they are essential for us. They always exist in our body. In human's body, potassium exists 2200ppm, 2.2g/kg. 93% of them are K 39 which is nonradioactive, and about 0.012% are K40 which emits β radiation. There are 2.6 x 10-4 g of K-40 per 1kg. It means 66Bq radiation are emitted per second, which can be converted to about 0.17mSv/y.
Carbon is one of the main components of our organism. 194g/kg are contained in our body. 2x10-10 g of them are C-14. It can be converted to about 0.03mSv/y. Adding 0.17mSv/y of K-40 to it will be total of 0.2mSv/y. In this book, I estimated 0.7mSv/y as an annual dose of internal exposure by adding the dose from various source of other natural radiation existing on our planet. It is unclear how close this estimate is to the actual, though. The amount of radiation exposure except this 0.2mSv also varies depending on the environment and locations, so each individual's dose also vary.
He also wrote, radioactive elements of Cs and K behave similarly, but "they are different in size which may cause the different behavior in our body. "
K40 and C14 "are distributed equally in whole body", and it limits the dose of exposure per cell to very small amount. But man-made radioactivity like Cs "would not be dispersed immediately after they are absorbed in the body", and the problem is that they would stay at specific parts, which allow the cells around to get high dose of radiation.
農場はBruce原発から114km。
This farm is located 114km from Bruce Nuclear Power Plant.
白米 Rice
Polit Farm, California, USA
８・０の地震が起こりメルトダウンになったとき、風に運ばれる放射性降下物の予測図
農場は、San Onfre原発から931ｋｍ。 Ｄｉｏｂｌｏ Ｃａｎｙｏｎ原発から555ｋｍ。
The farm is located 579 mile from San Onfre Nuclear Power Plant, and 345 mile from Dioblo Ｃanyon Nuclear Power Plant.
こうじ Mold Culture
Osaka, Japan
塩 Salt
North America
～＊～＊～＊～＊～＊～＊～＊～＊～＊～
白味噌のお値段 Shiromiso Price at Burnaby Warehouse.
400g $4.80
2.27kg $18.25 ($19.00 at Fujiya)
