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  2. Heavy metals - Wikipedia

    en.wikipedia.org/wiki/Heavy_metal_(elements)

    Heavy metals is a controversial and ambiguous term [2] for metallic elements with relatively high densities, atomic weights, or atomic numbers.The criteria used, and whether metalloids are included, vary depending on the author and context and has been argued should not be used.

  3. Strontium - Wikipedia

    en.wikipedia.org/wiki/Strontium

    While natural strontium (which is mostly the isotope strontium-88) is stable, the synthetic strontium-90 is radioactive and is one of the most dangerous components of nuclear fallout, as strontium is absorbed by the body in a similar manner to calcium. Natural stable strontium, on the other hand, is not hazardous to health.

  4. Isotopes of strontium - Wikipedia

    en.wikipedia.org/wiki/Isotopes_of_strontium

    The ratio 87 Sr/ 86 Sr is the parameter typically reported in geologic investigations; [4] ratios in minerals and rocks have values ranging from about 0.7 to greater than 4.0 (see rubidium–strontium dating). Because strontium has an electron configuration similar to that of calcium, it readily substitutes for calcium in minerals.

  5. Strontium-90 - Wikipedia

    en.wikipedia.org/wiki/Strontium-90

    Naturally occurring strontium is nonradioactive and nontoxic at levels normally found in the environment, but 90 Sr is a radiation hazard. [4] 90 Sr undergoes β − decay with a half-life of 28.79 years and a decay energy of 0.546 MeV distributed to an electron, an antineutrino, and the yttrium isotope 90 Y, which in turn undergoes β − decay with a half-life of 64 hours and a decay energy ...

  6. Strontium ranelate - Wikipedia

    en.wikipedia.org/wiki/Strontium_ranelate

    The European Pharmacovigilance Risk Assessment Committee (PRAC) recommended restriction in the use of strontium ranelate, based on a routine benefit-risk assessment of the medicine, which included data showing a possible increased risk of heart problems, including heart attacks. [3]

  7. Toxic heavy metal - Wikipedia

    en.wikipedia.org/wiki/Toxic_heavy_metal

    Some elements otherwise regarded as toxic heavy metals are essential, in small quantities, for human health. These elements include vanadium, manganese, iron, cobalt, copper, zinc, selenium, strontium and molybdenum. [75] A deficiency of these essential metals may increase susceptibility to heavy metal poisoning. [76]

  8. Bisphosphonate - Wikipedia

    en.wikipedia.org/wiki/Bisphosphonate

    The use of strontium ranelate is restricted because of increased risk of venous thromboembolism, pulmonary embolism and serious cardiovascular disorders, including myocardial infarction. [8] In postmenopausal women, the selective estrogen receptor modulator raloxifene is occasionally administered instead of bisphosphonates.

  9. Bioaccumulation - Wikipedia

    en.wikipedia.org/wiki/Bioaccumulation

    Bioaccumulation in turtles occurs when synthetic organic contaminants (i.e., PFAS), heavy metals, or high levels of trace elements enter a singular organism, potentially affecting their health. Although there are ongoing studies of bioaccumulation in turtles, factors like pollution , climate change , and shifting landscape can affect the ...