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Showing posts with label Strontium-90. Show all posts
Showing posts with label Strontium-90. Show all posts
Fukushima plant leaks radioactive water | World news | guardian.co.uk
Fukushima plant leaks radioactive water | World news | guardian.co.uk: "Radioactive water might have found its way into the Pacific ocean and experts believe it could contain strontium"
Radioactive 'Hot Spots' Detected in Tokyo, Yokohama - WSJ.com
Radioactive 'Hot Spots' Detected in Tokyo, Yokohama - WSJ.com: TOKYO—"Japanese researchers discovered high levels of radioactive material in concentrated areas in Tokyo and Yokohama, more than 241 kilometers away from the Fukushima Daiichi nuclear plant, as increasingly thorough tests provide a clearer picture of just how far contamination has spread and accumulated after the March disaster."
Yokohama finds high strontium-90 levels | The Japan Times Online
Yokohama finds high strontium-90 levels | The Japan Times Online: Radioactive strontium exceeding normal levels has been detected in sediment from atop an apartment building in Yokohama, some 250 km from the Fukushima No. 1 nuclear power plant, city officials said Wednesday."
Strontium-90 -Wkipedia
- Beta decay,
- Half life is 28.8 years,
- "The results of a study of hundreds of thousands of teeth collected by Dr. Louise Reiss and her colleagues as part of the Baby Tooth Survey showed that children born after 1963 had levels of 90Sr in their deciduous teeth that was 50 times higher than that found in children born before the advent of large-scale atomic testing. The findings helped convince U.S. President John F. Kennedy to sign the Partial Nuclear Test Ban Treaty with the United Kingdom andSoviet Union, which ended the above-ground nuclear weapons testing that placed the greatest amounts of nuclear fallout into the atmosphere. A set of 85,000 teeth that had been uncovered in storage in 2001 were given to theRadiation and Public Health Project. By tracking the individuals who had participated in the tooth-collection project, the RHPR published results in a 2010 issue of the International Journal of Health Service that showed that those children who later died of cancer before the age of 50 had levels of strontium 90 in their stored baby teeth that was twice the level of those who were still alive at 50.[3][4]"
- "Together with caesium isotopes 134Cs, 137Cs, and iodine isotope 131I it was among the most important isotopes regarding health impacts after the Chernobyl disaster.
- Half life is 28.8 years,
- "The results of a study of hundreds of thousands of teeth collected by Dr. Louise Reiss and her colleagues as part of the Baby Tooth Survey showed that children born after 1963 had levels of 90Sr in their deciduous teeth that was 50 times higher than that found in children born before the advent of large-scale atomic testing. The findings helped convince U.S. President John F. Kennedy to sign the Partial Nuclear Test Ban Treaty with the United Kingdom andSoviet Union, which ended the above-ground nuclear weapons testing that placed the greatest amounts of nuclear fallout into the atmosphere. A set of 85,000 teeth that had been uncovered in storage in 2001 were given to theRadiation and Public Health Project. By tracking the individuals who had participated in the tooth-collection project, the RHPR published results in a 2010 issue of the International Journal of Health Service that showed that those children who later died of cancer before the age of 50 had levels of strontium 90 in their stored baby teeth that was twice the level of those who were still alive at 50.[3][4]"
- "Together with caesium isotopes 134Cs, 137Cs, and iodine isotope 131I it was among the most important isotopes regarding health impacts after the Chernobyl disaster.
Strontium-90 is a "bone seeker" that exhibits biochemical behavior similar tocalcium, the next lighter Group 2 element. After entering the organism, most often by ingestion with contaminated food or water, about 70-80% of the dose gets excreted. Virtually all remaining strontium-90 is deposited in bones and bone marrow, with the remaining 1% remaining in blood and soft tissues. Its presence in bones can cause bone cancer, cancer of nearby tissues, and leukemia. Exposure to 90Sr can be tested by abioassay, most commonly by urinalysis." Wikipedia
Instead of playing war games the world community needs to work together to end the releases of radioactive fission products which are now blanketing the whole northern hemisphere and are finding their way into soils, drinking water, milk and foods.
Some of the latest on Fukushima:
- Level 7 on INES scale.
- Strontium-90 was found on the ground of Fukushima;
- "Radiation released into the atmosphere peaked from March 15 to 16. Radiation is still being released, but the amount now has fallen considerably," said NISA's Nishiyama.
- Level 7 on INES scale.
- Strontium-90 was found on the ground of Fukushima;
- "Radiation released into the atmosphere peaked from March 15 to 16. Radiation is still being released, but the amount now has fallen considerably," said NISA's Nishiyama.
-" Lam Ching-wan, a chemical pathologist at the University of Hong Kong and member of the American Board of Toxicology, said this level of radiation was harmful.
"It means there is damage to soil, ecosystem, water, food and people. People receive this radiation. You can't escape it by just shutting the window," Lam said."
For the whole article see Reuters it has some new pictures which clearly show that Fukushima is not under control.
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