Neptunium: biological information

Biological role of neptunium: neptunium has no biological role.

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 neptunium is in your body? Find out here.

You can use this form to calculate how much neptunium 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 neptunium is in your body
Enter your weight here: You contain about : grams of neptunium

Hazards and Risks

Hazards and risks associated with neptunium: neptunium does not occur to any significant extent in the biosphere and so normally never presents a risk. Neptunium is studied in a few nuclear research laboratories where its high radioactivity requires special handling techniques and precautions.

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neptunium atomic number