福島第一がれき撤去、20キロ先汚染 昨夏、コメにセシウム
昨日の東電会見やっぱり酷いね。海水浴場のサンプリングも南相馬の米の件もどちらも誠意の欠片すら感じないでし(>_<)そもそもサンプリングやモニタリングする時は、有意なデータが採取出来そうな場所を選定するんだけど、国や東電がやる場合は有意なデータが出なさそうな場所ばかりなんだもん。
2014-07-15 21:19:291Fのカバーリング撤去だって詳細な作業内容や工程も出来上がってて、いつ何をやるか全て出せるはずなのに何故だか公表しないんだよね。誰が何を目的に、詳細を公表しないのかわかんないでし(>_<)南相馬の件だって農水省も規制庁も東電も今まで公表しなくて内証にしてたかわかんないし。
2014-07-15 21:27:57内容は別として、報道として気になるのは「・・・がわかった。」というものが殆どで、誰に聞いたのか誰があきらかにしたのか不明な記事、ニュースばかり。それなのに農水省提供の写真掲載。東京新聞と産経新聞は「農林水産省は」「明らかにした」と主語がある。文面が同じなので多分通信社。
2014-07-14 21:19:31これだと待っててもプレスリリースがあるのかないのか分からないので、気になる人は直接農水省に問い合わせて、情報提供を求めた方がいい。提供してもらえない場合には開示請求ができます。郵送で請求できるから霞ヶ関に行く必要はない。
2014-07-14 21:20:27- Reassessment of 90Sr, 137Cs, and 134Cs in the Coast off Japan Derived from the Fukushima Dai-ichi Nuclear Accident - Environmental Science & Technology (ACS Publications)
http://pubs.acs.org/doi/abs/10.1021/acs.est.5b03903
Maxi Castrillejo†, Núria Casacuberta‡, Crystaline F. Breier§, Steven M. Pike§, Pere Masqué†∥⊥, and Ken O. Buesseler§
† Institut de Ciència i Tecnologia Ambientals & Departament de Física, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain
‡ Laboratory of Ion Beam Physics, ETH-Zurich, Otto-Stern-Weg 5, 8093 Zurich, Switzerland
§ Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts, 02543 United States
∥ Oceans Institute & School of Physics, The University of Western Australia, Crawley, WA, 6009 Australia
⊥ School of Natural Sciences & Centre for Marine Ecosystems Research, Edith Cowan University, Joondalup, WA, 6027 Australia
Environ. Sci. Technol., 2016, 50 (1), pp 173–180
DOI: 10.1021/acs.est.5b03903
Publication Date (Web): December 2, 2015
Copyright © 2015 American Chemical Society
Phone: +34-9-3581-1191; fax: +34-9-3581-2155; e-mail: mcastrillejo.sci@gmail.com.
Abstract
The years following the Fukushima Dai-ichi nuclear power plant (FDNPP) accident, the distribution of 90Sr in seawater in the coast off Japan has received limited attention. However, 90Sr is a major contaminant in waters accumulated within the nuclear facility and in the storage tanks. Seawater samples collected off the FDNPP in September 2013 showed radioactive levels significantly higher than pre-Fukushima levels within 6 km off the FDNPP. These samples, with up to 8.9 ± 0.4 Bq·m–3 for 90Sr, 124 ± 3 Bq·m–3 for 137Cs, and 54 ± 1 Bq·m–3 for 134Cs, appear to be influenced by ongoing releases from the FDNPP, with a characteristic 137Cs/90Sr activity ratio of 3.5 ± 0.2. Beach surface water and groundwater collected in Sendai Bay had 137Cs concentrations of up to 43 ± 1 Bq·m–3, while 90Sr was close to pre-Fukushima levels (1–2 Bq·m–3). These samples appear to be influenced by freshwater inputs carrying a 137Cs/90Sr activity ratio closer to that of the FDNPP fallout deposited on land in the spring of 2011. Ongoing inputs of 90Sr from FDNPP releases would be on the order of 2.3–8.5 GBq·d–1 in September 2013, likely exceeding river inputs by 2–3 orders of magnitude. These results strongly suggest that a continuous surveillance of artificial radionuclides in the Pacific Ocean is still required.
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