- 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."
- "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.