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Strontium | 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: Strontium 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 → Advertisements Environmental MonitoringFukushimaIAEATEPCO Cesium, Iodine, N Pacific, Plutonium, Strontium North Korean Atmospheric Thermonuclear Test: How much contamination can we expect? September 27, 2017 fukushimainform Leave a scuttlebutt By Jay T. Cullen The purpose of this post is to self-mastery a thought experiment to victorious at (I hope) a useful estimate of how much radioactive contamination might occur if North Korea detonates a thermonuclear weapon in the lower undercurrent over the North Pacific Ocean.  There are a significant number of unknowns, not the least of which is the fundamental uncertainty as to whether the rogue nation has successfully tested a Teller-Ulam style thermonuclear weapon or not.  I explain my assumptions and compare the resulting global release of radioisotopes that represent a radiological health snooping from such a test to the amounts recently released from the Fukushima Daiichi Nuclear Power Plant (FDNPP) disaster, the Chernobyl disaster and volume atmospheric weapons testing in the last century. I invite comments and an written of the tideway used here and how it might be improved. Continue reading North Korean Atmospheric Thermonuclear Test: How much contamination can we expect? → ChernobylFukushimaNorth KoreaWeapons Testing Chernobyl, Fukushima, Humans, Japan, Strontium Radiation and supplies safety: A story of standards June 6, 2016 dr.jonathan.kellogg 2 Comments April 26th marked the 30th year-end of the 1986 Chernobyl nuclear disaster. The ~2600 sq km (~1000 sq mi) exclusion zone remains in place virtually the power plant and wildlife are reclaiming the habitat. Just outside the exclusion zone, the Associated Press reports that dairy farms are operating and selling milk and dairy products virtually Belarus and Russia. The tragedian obtained a milk sample from one of these farms, had it tested, and found it to be contaminated with levels of strontium-90 (90Sr) that are 10 times higher than the nation’s supplies safety limits. At first I was alarmed that this could make it to market, however, since working for the InFORM project I’ve learned that not all limits are equal. Let’s take a gander at how this milk would fare under standards from around the world. Continue reading Radiation and supplies safety: A story of standards → DairyHealth RiskLimitsMilk Cesium, Fukushima, Japan, Marine Life, Peer Reviewed, Strontium Radioactive Strontium and Cesium in Fish From the Harbor at the Fukushima Dai-ichi Nuclear Plant July 30, 2015 fukushimainform 1ScuttlebuttBy Jay T. Cullen The purpose of this post is to report on a recent peer-reviewed study that investigated the radionuclide content of fish unprotected in the harbor of the Fukushima Dai-ichi Nuclear Powerplant (FDNPP) in 2012 and 2013. The post is moreover written in part to write questions like: Why don’t you measure 90Sr in fish you reservation off of North America? This post is part of an ongoing series defended to summarizing results from scientific research into the impact of the FDNPP disaster on the environment. Fujimoto and colleagues measured the worriedness of Cesium-134 (134Cs half life ~2 years), Cesium-137 (137Cs half life ~30 years) and Strontium-90 (90Sr half life ~29 years) in fish placid from the FDNPP harbor and just outside the port in 2012 and 2013. Fish were most contaminated in the harbor and had radiocesium worriedness concentrations (in whole soul without internal organs, Bq kg-1 – wet weight) that were ~200-330 times higher than measured 90Sr levels. The much lower 90Sr levels compared to radiocesium in the fish is resulting with much lower releases of 90Sr to the Pacific Ocean compared to radiocesium in the produce of the meltdowns at FDNPP (see here, here and here for example). The worriedness of radiocesium in fish diminishes dramatically with loftiness from the harbor and as of April-June 2015 none of the fish unprotected in Fukushima prefecture waters exceeded the stringent 100 Bq kg-1 Japanese safety standard. Across the Pacific, we have yet to snift Fukushima derived radiocesium in salmon and steelhead trout unprotected in British Columbian waters as part of the Fukushima InFORM monitoring effort. 90Sr is much increasingly difficult and plush to unriddle in environmental samples than are the cesium isotopes. The results of the Fujimoto study suggest that 90Sr from Fukushima is unlikely to be found at detectable levels in marine organisms in the northeast Pacific and that resources to monitor the impact of the disaster on our marine environment should focus on the detection of the cesium isotopes. Continue reading Radioactive Strontium and Cesium in Fish From the Harbor at the Fukushima Dai-ichi Nuclear Plant → 134-Cs137-Cs90-SrBioaccumulationBiotaCesiumDetection methodsFDNPPFishFujimotoFukushimaSeafood Cesium, Fukushima, Japan, Marine Life, Peer Reviewed, Seawater, Strontium Fukushima Radionuclides in Pacific: Doses to Japanese and World Public Unlikely to Cause Health Damage March 25, 2015 fukushimainform 1ScuttlebuttBy Jay T. Cullen The purpose of this post is to summarize a the most recent, peer reviewed scientific study to examine the likely impact of Fukushima contamination of the North Pacific on human health. The blog is part of a standing series that seeks to communicate the results of scientific studies aimed at determining the impact of the triple meltdowns at the Fukushima Dai-ichi nuclear power plant (FDNPP) on ecosystem and public health. Povinec and Hirose’s recent paper in Scientific Reports examined the variation in Fukushima derived 90-Strontium (90Sr half life 28.8 years), 134-Cesium (134Cs half life ~2 years) and 137-Cesium (137Cs half life ~30 years) in seawater and biota offshore of the FDNPP and in the northwest Pacific. These isotopes are most likely to represent radiologically health risks to consumers of Pacific seafood given their propensity to concentrate in organisms and, in the specimen of 90Sr and 137Cs, their longevity in the environment. Doses to the Japanese and world population were unscientific and compared to doses owing to naturally occurring isotopes present in food. Doses from supplies unprotected in coastal waters right next to the FDNPP to 20 km offshore were similar to doses from naturally occurring isotopes (primarily 210Po) while doses from the consumption off fish unprotected in the unshut northwest Pacific were much lower than natural doses. In each specimen the individual doses are well unelevated levels where any negative health effects would be measurable in Japan or elsewhere. Continue reading Fukushima Radionuclides in Pacific: Doses to Japanese and World Public Unlikely to Cause Health Damage → 134-Cs137-CsDoseEnvironmental MonitoringFishFukushimaHiroseJapanPovinecseawaterStrontium Posts navigation 1 2 3 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