Welcome to FIS   Sponsored By
United States
Subscribe to FIS | Register with FIS | Advertise with FIS | Newsletter | About FIS | Contact us
   


WHOI marine chemist Ken Buesseler. (Photo: Tom Kleindinst, WHOI)n)

'Harmless' radiation found off Japanese coast

Click on the flag for more information about Japan JAPAN
Friday, February 24, 2012, 03:10 (GMT + 9)

Scientists have detected radioactive elements from the stricken Fukushima nuclear power plant in seawater and marine organisms as far as 600km from Japan. However, this radioactivity has not been deemed dangerous, they said.

"Just because we can measure radioactivity doesn't mean it's harmful," WHOI's Ken Buesseler said. "There's a pretty good news story in here - that the levels [of radioactivity] offshore are not of significance to human health in terms of exposure, or even if you were to eat the seafood offshore."

The findings resulted from a research cruise in June 2011 led by the Woods Hole Oceanographic Institution (WHOI). The cruise carried researchers from the US, UK, France, Spain and Japan who started this work just three months after the Fukushima crisis began in March, as an "independent check" on Japanese Government-funded research and the data made public by Tepco, the owners of the damaged Daiichi plant in Fukushima.

The Research Vessel KOK sailed gathered thousands of samples of seawater and the organisms living in it, such as plankton and small fish. It also deployed "drifters" into the water to study the activity of local currents and eddies, BBC News reports.

WHOI physical oceanographer Steven Jayn. (Photo: Tom Kleindinst, Woods Hole Oceanographic Institution)

Analysis showed elevated levels of radioactive elements -- including caesium-137 and caesium-134 -- possibly linked to releases from the nuclear power station.

Radioactivity readings in the seawater across the track ranged from less than 3 Bq per m3 up to 4,000 Bq per m3.

The maximum of these readings is about 1,000 times what could be measured in the water under normal conditions but they were about one-tenth the levels generally considered harmful, Buesseler noted, AP reports.

The cruise did not find these highest detections in areas sampled closest to Fukushima because swirling ocean currents formed concentrations of the radioactive compounds. At the same time, the researchers were not permitted any closer than 30km to the coast.

When examining plankton and fish, the researchers even identified a radioactive form of silver for the first time in the open ocean.

Regardless, all measured levels of the Fukushima-related radioactivity were much lower than those of potassium-40, a naturally occurring radioisotope.

"The concentration of potassium-40 was five to six times greater than all of the [elements from Fukushima] combined," explained Professor Nicholas Fisher from Stony Brook University. "I would not hesitate eating any of the organisms we sampled."

Moreover, the scientists established that Fukushima-related radioactivity levels in seawater are not diminishing as fast as many had hoped.

"The reactor site still seems to be leaking; it hasn't shut off completely, and at those levels right on the coast you could still have these concentration factors that we measured that would indicate some organisms would be at levels unfit for human consumption," Buesseler said.

Related articles:

-
Researchers focus on radiation's effects on marine life
-
Govt must release more data on radiation in seafood: oceanographic group 

By Natalia Real
editorial@fis.com
www.fis.com


 Print


Click to know how to advertise in FIS
MORE NEWS
Norway
Aug 21, 04:20 (GMT + 9):
Norway Royal Salmon experiences revenue drop in Q2
Spain
Aug 21, 03:30 (GMT + 9):
Galicia hopes to change sardine plan
Russian Federation
Aug 21, 02:50 (GMT + 9):
Control of attempts to dodge trade ban strengthened
Brazil
Aug 21, 01:40 (GMT + 9):
Norway and Brazil develop aquaculture cooperation
Argentina
Aug 21, 01:30 (GMT + 9):
(empty)
Belarus
Aug 21, 01:30 (GMT + 9):
IN BRIEF - Belarus Hopes To Cash In On Russian Sanctions
Norway
Aug 21, 01:20 (GMT + 9):
IN BRIEF - Hofseth Biocare ASA : Replaces damaged critical part in production and sells more fresh salmon oil
Viet Nam
Aug 21, 01:20 (GMT + 9):
IN BRIEF - Tra fish distribution centre to be set up at Belgian harbour
United States
Aug 21, 01:10 (GMT + 9):
IN BRIEF - Russia’s retaliation to sanctions a direct hit to Alaska
Norway
Aug 21, 01:10 (GMT + 9):
IN BRIEF - Norway Royal Salmon Q2 results down, cuts 2014 guidance
New Zealand
Aug 21, 01:00 (GMT + 9):
IN BRIEF - Key likes Opotiki aquaculture plan
Ghana
Aug 21, 01:00 (GMT + 9):
IN BRIEF - GHS 250 million spent on fish importation yearly
United Kingdom
Aug 21, 01:00 (GMT + 9):
IN BRIEF - Aldi deal helps Hull fish firm Roach Bros Curers post large sales increase
New Zealand
Aug 21, 01:00 (GMT + 9):
IN BRIEF - Quota increases recognise sustainable species
Denmark
Aug 21, 01:00 (GMT + 9):
IN BRIEF - Genetically tracking farmed fish escaping into the wild



Lenguaje
FEATURED EVENTS
  
TOP STORIES
Cluster farming helps improve tilapia production
Fiji The Secretariat of the Pacific Community has been working with the EU and the Fiji Ministry of Fisheries and Forests in assisting smallholder tilapia farmers to improve production by working together in cluster groups.
Data gaps affect pacific tuna assessment
Marshall Islands Pacific Islands Forum Fisheries Agency requests its members to properly report their fishing catches in Pacific waters to help prevent overfishing.
Walmart’s obtains marginal income and focuses on e-commerce
United States The operating income of the world's largest retailer Walmart declined by a 2.4 per cent in US during the fiscal second quarter while online sales increased.
New fish vaccine to protect tilapia
Netherlands  MSD Animal Health (known as Merck Animal Health in the US and Canada) launched a new fish vaccine as a promising measure to help protect tilapia and other fish against the biotype 1 strain ...
 
Maruha Nichiro Corporation
Nichirei Corporation -Headquarter-
Pesquera El Golfo S.A.
Ventisqueros - Productos del Mar Ventisqueros S.A
Wärtsilä Corporation -Wartsila Group Headquarter-
ITOCHU Corporation -Headquarter-
BAADER - Nordischer Maschinenbau Rud. Baader GmbH (Head Office)
Inmarsat plc - Global Headquarters
Marks & Spencer
Tesco PLC (Supermarket) - Headquarters
Pescanova, S.A. - Group Headquarters
Sea Harvest Corporation (PTY) Ltd.
I&J - Irvin & Johnson Limited
Blue Continent Products (Pty) Ltd - (Oceana Group Limited)
Pesquera San Jose S.A.
Nutreco N.V. - Head Office
CNFC China National Fisheries Corporation - Group Headquarters
W. van der Zwan & Zn. B.V.
SMMI - Sunderland Marine Mutual Insurance Co., Ltd. - Headquarters
Icicle Seafoods Inc. -Headquarter-
Starkist Seafood Co. - Headquearters
Trident Seafoods Corp.
American Seafoods Group LLC - Head Office
Marel ehf - Group Headquarters
SalMar ASA - Group Headquarters
Sajo Industries Co., Ltd
Hansung Enterprise Co.,Ltd.
BIM - Irish Sea Fisheries Board (An Bord Iascaigh Mhara)
CEFAS - Centre for Environment, Fisheries & Aquaculture Science
COPEINCA ASA - Corporacion Pesquera Inca S.A.C.
Chun Cheng Fishery Enterprise Pte Ltd.
Food Project (Siam) Co., Ltd.
VASEP - Vietnam Association of Seafood Exporters & Producers
Gomes da Costa
Furuno Electric Co., Ltd. (Headquarters)
NISSUI - Nippon Suisan Kaisha, Ltd. - Group Headquarters
FAO -Food and Agriculture Organization- Fisheries and Aquaculture Department (Headquarter)
Hagoromo Foods Co., Ltd.
Koden Electronics Co., Ltd. (Headquarters)
A.P. Møller - Maersk A/S - Headquarters
BVQI - Bureau Veritas Quality International (Head Office)
UPS - United Parcel Service, Inc. - Headquarters
Hamburg Süd Group - (Headquearters)
Armadora Pereira S.A. - Group Headquarters
NOAA - National Oceanic and Atmospheric Administration (Headquarters)
Omega Protein Corporation -Headquarter-
Grupo Calvo - Luis Calvo Sanz, S.A. (Group Headquarter)
Marona S.A.
Marine Harvest ASA - Headquarters
Marubeni Europe Plc -UK-
Findus Ltd
Icom Inc. (Headquarter)
WWF Centroamerica
Oceana Group Limited
The David and Lucile Packard Foundation
Ajinomoto Co., Inc. -Headquarter-
Friosur S.A. - Headquarters
Cargill, Incorporated - Global Headquarters
Benihana Inc.
Leardini Pescados Ltda
Mitsubishi Corporation Marine Products Depts. D.Team
CJ Corporation  -Holding Headquarter-
Greenpeace International - The Netherlands
David Suzuki Foundation
Fisheries and Oceans Canada -Communications Branch-
Mitsui & Co.,Ltd - Headquarters
Ocean Trawlers Group - Ocean Trawlers HK Ltd.
Natori Co., Ltd.
Carrefour Supermarket - Headquarters
FedEx Corporation -Headquarter-
AKBM - Aker BioMarine ASA
Seafood Choices Alliance -Headquarter-
Austevoll Seafood ASA
Walmart / Wal-Mart Stores, Inc. (Supermarket) -Headquarter-
New Japan Radio Co.Ltd (JRC) -Head Office-
Gulfstream JSC
INVE Group - Head Office
Marine Stewardship Council  - MSC Worldwide
Royal Dutch Shell plc (Headquarter)
Genki Sushi Co.,Ltd -Headquarter-
Iceland Pelagic ehf
AXA Assistance Argentina S.A.
Caterpillar Inc. - Headquarters
Tiger Brands Limited
Morpol ASA - Group Headquarters
SeaChoice
National Geographic Society
AmazonFresh, LLC - AmazonFresh

Copyright 1995 - 2014 Fish Info & Services Co.Ltd| All Rights Reserved.   DISCLAIMER