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Sediment | Home Home Search Primary Menu Skip to contentWell-nighInFORMal 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 DaiichiWreckingUNSCEAR 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: Sediment British Columbia, Cesium, Marine Life, Peer Reviewed, Potassium, Sediment Monitoring Fukushima Contamination in Pacific Salmon and Soil in British Columbia March 11, 2018 fukushimainform Leave a scuttlebutt Beautiful sockeye salmon photographed by Eiko Jones. Seven years on, since the Fukushima Daiichi Nuclear Power Plant (FDNPP) accident, it is useful to start to bring together information from scientific studies of the impact of the contamination on the North American environment and its people. I recently wrote to communicate the most recent results of the Integrated Fukushima Ocean Radionuclide (InFORM) project. This post summarizes a recently published, peer-reviewed paper by colleagues lead by Dr. Krzyzstof Starosta of Simon Fraser University in BC working in parallel to InFORM. The unshut wangle paper was published in the CanadianPeriodicalof Chemistry and was recently recognized with the  “Best Paper Award” by the journal. They studied the concentrations of anthropogenic radioisotopes (134Cs half-life ~2 years, 137Cs half-life ~30 years) and naturally occurring radioisotope 40K (half-life 1.25 billion years) in Pacific salmon (sockeye, chum and chinook) and in soil and roof trash placid in southern British Columbia to determine the local impact of the FDNPP accident.  Their results were as follows: 134Cs (a fingerprint of Fukushima contamination) was not detected in any of the salmon samples 137Cs was not detected in sockeye or chum salmon but was detected in all chinook with an stereotype level of ~0.2 Bq kg-1Yearlydose from strained radionuclides to a human consumer of chinook salmon was unscientific to be ~1/300 of the dose owing to naturally occurring isotopes in the fish and ~1/30,000 of the yearly dose experienced for all other natural sources by the stereotype Canadian Most soil samples contained 134Cs and 137Cs which was delivered to the region by atmospheric transport shortly without the disaster Levels of Fukushima radioisotopes in soil did not tideway levels known to be harmful to living organisms Consistent with other monitoring in the zone the results of the study indicate that given the trace levels of contamination present the impact of the FDNPP wrecking on ecosystem and public health in North America will be insignificant. Continue reading Monitoring Fukushima Contamination in Pacific Salmon and Soil in British Columbia → Advertisements ChinookChumSalmonSockeyeSoilStarosta Cesium, Fukushima, Japan, Marine Life, Peer Reviewed, Plutonium, Seawater, Sediment, Strontium IAEA Affirms Japan’s Fukushima-Related Radioactivity Monitoring October 11, 2017 dr.jonathan.kellogg Leave a scuttlebutt by Tim Hornyak 11 October 2017 Originally published by Eos, a periodical of the American Geophysical Union Laboratories outside Japan have validated the results. Marine radioactivity levels from the nuclear disaster have fallen, but questions remain years without the meltdown. Continue reading IAEA Affirms Japan’s Fukushima-Related Radioactivity Monitoring → Environmental MonitoringFukushimaIAEATEPCO Cesium, Fukushima, Japan, Peer Reviewed, Sediment Scientists Find New Source of Radioactivity from Fukushima Disaster October 2, 2017 dr.jonathan.kellogg Leave a scuttlebutt by WHOI Media Relations Published 2 October 2017 Scientists have found a previously unsuspected place where radioactive material from the Fukushima Dai-ichi nuclear power plant disaster has accumulated—in sands and stagnant groundwater underneath beaches up to 60 miles away. The sands took up and retained radioactive cesium originating from the disaster in 2011 and have been slowly releasing it when to the ocean. Continue reading Scientists Find New Source of Radioactivity from Fukushima Disaster → BeachesBuesselerEnvironmental MonitoringFukushimaGroundwaterSanial Fukushima, Japan, Peer Reviewed, Plutonium, Sediment Most Recent Measurements of Plutonium in Pacific: Fukushima Fallout Undetectable February 23, 2015 fukushimainform 1ScuttlebuttBy Jay T. Cullen @JayTCullen and @FukushimaInFORM The purpose of this post is to report results from two recently published studies on plutonium releases from Fukushima to the Pacific Ocean. The post contributes to an ongoing series where results from peer-reviewed studies on the impact of the triple meltdowns at the Fukushima Dai-ichii nuclear power plant on the health of the Pacific ecosystem and residents of the west tailspin of North America are reported. A commonly asked question of those involved in monitoring the health of the North Pacific is why increasingly measurements of the long lived, alpha-emitting isotopes of plutonium (239Pu half-life 24,100 years; 240Pu 6,570 years) are not stuff made given the potential for these isotopes to pose radiological health risks. Previous work indicates that 239+240Pu releases from Fukushima were well-nigh 100,000 and 5,000,000 times lower than releases from the Chernobyl disaster in 1986 and 20th century weapons testing respectively. Initial measurements of Pu isotopes in seawater and marine sediments off the tailspin from Fukushima indicated no detectable transpiration occurred in Pu inventories in the western Pacific without the disaster. These two most recent studies monitored the worriedness and isotopic sonnet of Pu in seawater and marine sediments off of Japan from 2008-2013. Similar to older work these studies find that the release of Pu isotopes by the Fukushima wrecking to the Pacific Ocean has been negligible. The Fukushima signal is not detectable in the ocean off Japan relative to legacy sources from atmospheric weapons testing in the 20th century. Given these stook results 239+240Pu from Fukushima is unlikely to negatively impact the health of the Pacific Ocean ecosystem and levels in the environment from Fukushima will not pose a danger to the population of North America. Continue reading Most Recent Measurements of Plutonium in Pacific: Fukushima Fallout Undetectable → 239-Pu240-PuBuEnvironmental MonitoringFukushimaJapanOikawaPlutoniumseawaterSediment Atmospheric, Cesium, Chernobyl, Fukushima, Iodine, Peer Reviewed, Seawater, Sediment, Strontium, Tellurium, Xenon Comparing the Environmental Impacts of the Chernobyl and Fukushima Disasters November 21, 2014 fukushimainform 1ScuttlebuttEstimated total atmospheric source term for Fukushima compared to Chernobyl in PBq (PBq = 10^15 Bq). From Steinhauser et al. (2014) SciToTEnviron By Jay T. Cullen This post reports on a recently published peer reviewed study by Steinhauser and colleagues in the periodical Science of the Total Environment (behind pay wall) comparing the Chernobyl and Fukushima nuclear accidents. The post is part of an ongoing effort to communicate the results of scientific studies into the impact of the Fukushima disaster on the environment. A majority of the radioactivity released from both Chernobyl and Fukushima can be attributed to volatile radionuclides (noble gases, iodine, cesium, tellurium). In contrast, the amounts of increasingly refractory elements (including actinides like plutonium), released by Chernobyl was ~four orders of magnitude (10,000 fold) higher than releases from Fukushima. The most cited source term for Chernobyl is 5300 PBq (excluding noble gases) while a review of published studies of Fukushima carried out by the authors whilom indulge an estimate for the total atmospheric source term of 520 (a range of 340–800) PBq. Monitoring of air, soil and water for radionuclides without the respective accidents indicate that the environmental impact of Chernobyl is likely to be much greater than the Fukushima accident. The post is relatively information dumbo as I have provided data tables for those who are interested in the estimates and the peer-reviewed studies from which they come. Apologies up front to those who find such information tedious. Continue reading Comparing the Environmental Impacts of the Chernobyl and Fukushima Disasters → ChernobylEnvironmental MonitoringFukushimaJapanRadionuclidesSteinhauserTerrestrial Posts navigation 1 2 Next → 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. Privacy & Cookies: This site uses cookies. By standing to use this website, you stipulate to their use. To find out more, including how to tenancy cookies, see here: Cookie Policy Post to Cancel