Osmium: biological information

Biological role of osmium: osmium has no biological role. Osmium oxide, OsO4, is highly toxic, and boils at 130°C (760 mm). Concentrations in air as low as 10-7 g m-3 can cause lung congestion, skin damage, and severe eye damage.

Levels in humans

Table: the abundances of the elements in humans.
Human abundance by weight no data ppb by weight
Human abundance by atoms no data atoms relative to C = 1000000

How much osmium is in your body? Find out here.

You can use this form to calculate how much osmium your body contains. Enter your weight in either kilograms or pounds and click the "Calculate" button. You must enter a number, not text! Elements for which there are no data will always give a value of zero for the weight, no matter what you put in the weight box.

Calculate how much osmium is in your body
Enter your weight here: You contain about : grams of osmium

Hazards and Risks

Hazards and risks associated with osmium: osmium metal does not normally cause problems as it is relatively unreactive but all osmium compounds should be regarded as highly toxic. The metal dust is an irritant and presents a fire and explosion hazard. Osmium oxide, OsO4, is highly toxic, and boils at 130°C (760 mm). Concentrations in air as low as 10-7 g m-3 can cause lung congestion, skin damage, and severe eye damage. The oxide, in particular, should only ever be handled by a properly qualified chemist.

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osmium atomic number