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Additional recommended knowledge
The size of hot particles contained in nuclear fallout ranges from 10 nanometers to 20 micrometers for the worldwide fallout; local fallout particles are significantly bigger (100 micrometers to several millimeters).
Hot particles can consist of tiny specks (~10 micrometers sized) of nuclear fuel (so-called fuel fleas due to their tendency to become electrically charged and then jump from surface to surface), or of other material activated by exposition to neutron radiation.
Hot particles present significant health hazard when ingested or entered the body by other means.
The Chernobyl disaster was a major source of hot particles.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Hot_particle". A list of authors is available in Wikipedia.|