Probably not, but because americium emits alpha particles, americium poses a significant risk if enough is swallowed or inhaled. Once
in the body, americium tends to concentrate primarily in the skeleton, liver, and muscle. It generally stays in the body for decades and continues to expose the surrounding tissues to radiation. This may eventually increase a person’s chance of developing cancer, but
such cancer effects may not become apparent for several years. Americium, however, also can pose a risk from direct external exposure.