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Polonium | Home Home Search Primary Menu Skip to content About InFORMal E-News InFORM Scientists InFORMal Scientists InFORMal Science Photos Partners InFORM Monitoring InFORMal E-News Methods Citizen Science Gamma Spectroscopy Marine Biota Monitoring Methods for Other Radionuclides (WHOI CMER) Biota Oceanic Coastal Archived Results Radiation Research By Location Japan Fukushima NW Pacific N Pacific NE Pacific British Columbia North America Chernobyl By Sample Type Algae Atmospheric Human Marine Life Model Plants & Fungi Seawater Sediment By Isotope Cesium Iodine Plutonium Polonium Potassium Strontium Tellurium Uranium Xenon Presentations & Media Presentations Media Interviews Resources InFORMing Research FAQ Radiological Monitoring at the Radiation Protection Bureau of Health Canada IAEA Inter-laboratory Comparison Report 2014-2016 Official IAEA Report on the Fukushima Daiichi Accident UNSCEAR 2017 Report on Levels and Effects of Radiation Exposure Methods for Other Radionuclides (WHOI CMER) Safety lessons learned from Fukushima: Part 1 – National Acadamies Report Safety lessons learned from Fukushima: Part 2 – National Acadamies Report Health Canada Observations Post-Disaster Canadian Radiological Monitoring Network Naturally Occurring Radioactive Materials Guidelines Search for: Category Archives: Polonium Cesium, FAQ, Marine Life, Peer Reviewed, Polonium, Strontium What Controls Levels of Fukushima Radioisotopes in Marine Organisms? November 21, 2014 fukushimainform 1 Comment By Jay T. Cullen This post is part of an ongoing effort to communicate the risks to people living on the west tailspin of North America resulting from the ongoing release of radionuclides from the Fukushima-Daiichi nuclear power plant without the Tohoku earthquake and subsequent triple reactor meltdowns in March 2011. The purpose of this post is to explain how the concentration of radionuclides in seawater impacts the value of radioactive elements taken up by the marine biota. The goal is to wordplay questions like: How upper can we expect radioactive element concentrations to get in marine organisms? What might be the exposure of marine organisms and human consumers of these organisms to Fukushima sourced radionuclides? Continue reading What Controls Levels of Fukushima Radioisotopes in Marine Organisms? → Advertisements 137-Cs210-PoAlgaeBaumannBecquerelBioaccumulationBiotaConcentrationConsumptionDoseEnvironmental MonitoringExposureFishForecastIAEAMusselsN PacificNatural radiationRadioactivity Biota, British Columbia, Cesium, Marine Life, Monitoring, Peer Reviewed, Polonium Looking For Fukushima Radionuclides in FishUnprotectedOff the WestTailspinof Canada August 15, 2014 fukushimainform 4 Comments by Jay T. Cullen The purpose of this post is to report measurements of radioactivity in fish unprotected off the west tailspin of Canada based on the work of InFORM team member Dr. Jing Chen.  A collaborative effort between Health Canada, Department of Fisheries and Oceans Canada, and the University of Victoria was published in May 2014 in the peer-reviewed, open-access scientific periodical Radiation Protection Dosimetry (link). The authors examined the activities of cesium radioisotopes (134-Cs half-life ~2 years and 137-Cs half-life ~30 years) that were released in large quantities due to the triple reactor meltdowns at Fukushima Dai-ichi Nuclear Power Plant in 2011 as well as a naturally occurring polonium isotope (210-Po) that can pose radiological health concerns for human consumers of marine fish. Samples of chum and coho salmon, halibut, sablefish and spiny dogfish were analyzed and none were found to contain detectable levels of Fukushima derived radionuclides. Radiation doses to human consumers were unswayable by thesping a inobtrusive worst specimen scenario where Cs isotopes were present at detection limits of the measurement and found to be 18 times lower than doses owing to the naturally occurring, alpha-emitter 210-Po. The authors conclude that the radiation dose from Fukushima derived isotopes present in fish unprotected in Canadian waters represent a very small fraction of the yearly dose from exposure to natural preliminaries radiation. Based on these measurements, at present, Fukushima derived radionuclides in fish do not represent a significant radiological health risk to Canadians. Continue reading Looking For Fukushima Radionuclides in FishUnprotectedOff the WestTailspinof Canada → 134-Cs137-Cs210-PoBioaccumulationBiotaBritish ColumbiaChenConsumersDogfishDoseFishFisherFisheries and Oceans CanadaHalibutHealth CanadaHealth RiskNatural radiationNevilleSablefishSalmonSievertSmoking View Fukushima-InFORM-257383817784613’s profile on FacebookView @FukushimaInFORM’s profile on TwitterView UCRqxVIr3s5Yc-djXahyBunA’s profile on YouTube Recent Posts Voyage Reflections Friday the 13th was the Luckiest Day Ever Into the Storm Advertisements Funded by Blog at WordPress.com. 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