strontium 90


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Related to strontium 90: cesium 137, strontium 89

strontium 90


n.
a harmful radioactive isotope of strontium, produced in certain nuclear reactions and present in their fallout.

strontium 90

A radioactive isotope of strontium having a mass number of 90 and a half-life of 28 years. Strontium 90 is the most dangerous component of the fallout from nuclear explosions because it can be absorbed by the body. It is also used in medicine to treat cancer.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.strontium 90 - a radioactive isotope of strontium (with the mass number 90) that is present in the fallout from nuclear explosions; can be assimilated like calcium into bones
atomic number 38, Sr, strontium - a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite
References in periodicals archive ?
Officials in Poland seized a batch of counterfeit cigarettes found to contain strontium 90.
The isotope Strontium 90, released into the atmosphere by the A-bombs, was believed to have changed the genes of the children in the womb in some positive way, creating a superior version of the human genome.
Investigations showed that the radioactive isotopes cesium 137 and strontium 90 were present in water rising up the boreholes in quantities that exceeded norms for drinking water by 1000 times, said Yekaterina Ulitina, who headed up the cleanup project for RosRAO.
The leaked water contains 230 million becquerels per liter of beta ray-emitting radioactive substances, consisting mainly of cancer-causing strontium 90, according to TEPCO.
The legal limit for releasing strontium 90, which has a half life of around 29 years, into the sea is 30 becquerels per litre.
TEPCO detected 200,000 becquerels per liter of beta ray-emitting radioactive substances including strontium 90.
If we could see radioactivity, we'd think a lot of places were "permanently scarred" - for while the strontium 90 mentioned in that report has a half-life of a mere 29 years, plutonium 239's half-life is 24,000 years and those of iodine 129 and uranium 235 are well into the millions of years.
SIR - Tepco, the owner of the wrecked Fukushima nuclear reactors, said last week that it had discovered high levels of radioactive strontium 90 and tritium in a well located just 27 metres from the Pacific Ocean.
When they were putting breakfast on the table, they saw not only Wheaties and milk, but also strontium 90 and iodine 131 .
A similar situation exists with radioactive Strontium 90, which concentrates itself in bones causing cancers there.
Project Sunshine, run by Army researchers, looking for signatures of strontium 90 in the bones of newborn dead, stillborn babies, 6000 shipped from around the world to measure exposure in leg bones and backbones.
You can't escape Strontium 90 because it's in the air.