General Discussion
In reply to the discussion: West Coast radiation from Fukushima disaster poses no risk, experts say. [View all]Octafish
(55,745 posts)They count alpha- and beta- particles, no hot particles. Why that matters:
DOE-STD-1128-98
Guide of Good Practices for Occupational Radiological Protection in Plutonium Facilities
EXCERPT...
4.2.3 Characteristics of Plutonium Contamination
There are few characteristics of plutonium contamination that are unique. Plutonium
contamination may be in many physical and chemical forms. (See Section 2.0 for the many
potential sources of plutonium contamination from combustion products of a plutonium fire
to radiolytic products from long-term storage.) [font color="blue"]The one characteristic that many believe is
unique to plutonium is its ability to migrate with no apparent motive force. Whether from
alpha recoil or some other mechanism, plutonium contamination, if not contained or
removed, will spread relatively rapidly throughout an area. [/font color]
SOURCE (PDF file format): http://www.hss.doe.gov/nuclearsafety/techstds/docs/standard/DOE-STD-1128-2008.pdf