FUKUSHIMA: RADIOACTIVITY in SEAWATER 福島事故：英国発信の放射能による海洋汚染報告について

(Source) http://nuclear-news.net/2013/07/17/fukishima-radioactivity-in-seawater/

An OPEN BRIEFING, Tim Deere-Jones: Marine Radioactivity Consultant, timdj@talktalk.netJuly 2013 t’s my conclusion that the official monitoring regime being carried out by TEPCO and other Japanese agencies is inadequate to the task of identifying the potential radio biological threats to the public.


Tim Deer-Jones氏は、１９８０年以降、英国で海洋放射能汚染の研究に従事し、その分野のコンサルタントとして、独立したフリーランスの立場で、ＮＧＯ，Green Group、市民キャンペーングループや、地域の機関で、キャンペーン活動をしています。 彼は、セラフィールドにある英国の軍事産業や原発産業によって、長い期間の間、汚染され続けられているIrish Seaの調査を例にとって、放射能汚染がどのようにして、付近の環境を、汚染するのかについての報告書を発表しています。
 
福島事故による汚染について:

The currently operating marine environmental monitoring regimes in the relevant sea area are focussing on a very small number of radio-nuclides, principally Caesium, Iodine and Strontium which represent less than 10% of the total inventory of nuclides likely to be found in the reactor and cooling ponds of BWR nuclear power station (between 40 and 50)
 ＊現在の段階においての放射能によるる海洋汚染のモニタリングについてですが、福島原発事故から、放出された核種４０－５０のうちの１０％の種類(主に、セシウム、ヨウ素またはストロンチウム)のみしか、調査が行われていない。
 
As nuclear industries , pro nuclear governments and their nuclear regulators always have done, they over represent the issue of dilution and dispersion
As nuclear industries, pro nuclear governments and their nuclear regulators always have done, they under represent the issues of re-concentration, transport, transfer from one environmental media to another and pathways of delivery to human populations  
＊原発関連企業、 原発推進の政府または、原子力規制委員会らにより、常に、言われてきたことは、海中で、汚染が希釈し、拡散するということだが、環境中において、濃縮しな おすことや、移動すること、または、ある環境の媒体を通して、他の環境へと移行し、私たちの生活の場に運ばれるということについては、なにも、述べられて いない。そして、海洋汚染の濃縮については、核種の寿命の半減期が短いから、証拠がないにもかかわらず、すぐに減少するから、大丈夫としている。　このことは、例えば半減期が３０年のセシウム１３７については当てはまらない。　さらに、α核種については、半減期が何百年、種類によっては何千年と続き、その長い年月の間、計測し続ける必要があるとのこと。


Issue 1: The number of radio-nuclides entering the marine environment of the east coast of Japan.
Issue 2: The nature of the radio-nuclides derived from reactor and cooling pond outputs
It’s my conclusion that the official monitoring regime being carried out by TEPCO and other Japanese agencies is inadequate to the task of identifying the potential radiobiological threats to the public.

My field work experience and desk review research have been focussed on the behaviour and fate of man made radioactivity in UK and European marine, coastal and estuarine environments and the pathways by which doses of marine radioactivity may be delivered to maritime, coastal zone and island populations.
In the context of the ongoing contamination of the marine environment following the multiple meltdowns and loss of coolant from the Fukushima site I note the ongoing near-site monitoring of the marine environment (sea water) and of some marine environmental media (principally fish, with some marine algae).
However I am deeply concerned to note that a number of highly relevant issues and phenomena relating to the behaviour and fate of the Fukushima sea discharged radioactivity and its potential for delivering doses to human populations remain un-recorded, under researched and/or completely ignored.
Thus it is evident that the true impacts of the radioactive contamination of the Japanese east coast are not being documented or acted upon.
The short, informal briefing, set out in the following pages, identifies and comments on some of those issues and introduces the outcome of a number of UK observations and studies (principally carried out in one of the planets most radioactive sea areas: the Irish Sea and it’s adjacent waters) in order to provide some supporting background information in support of my concerns relating to the Fukushima case.

N.B. Input of the search term “Tim Deere-Jones: Marine Radioactivity” to most of the popular search engines will upload links to a number of fully referenced, scientific and technical reports and studies, on the behaviour, fate and doses potential of marine discharged radioactive wastes in UK and European waters, that I have authored for a number of clients. Read more »