<Dan wrote> > I've looked up the total risk, and after 200 years > it approaches that of > the ore that was originally mined. After a million > years, the risk of > radiation damage should be far less than that > incurred by spending the night with someone.
(System's still slow) Ah - my recall may have been thousands of years to reach "background radiation level" rather than that of the *ore* (this still isn't the site I recall, which had hard data rather than prose): http://www.nea.fr/html/rwm/reports/1995/geodisp/geological-disposal.html "...Through a system of multiple containment barriers, this strategy would isolate the wastes from the biosphere for extremely long periods of time, ensure that residual radioactive substances reaching the biosphere after many thousands of years would be at concentrations insignificant compared for example with the natural background of radioactivity, and render the risk from inadvertent human intrusion acceptably small..." Second problem: how can we insure that no humans enter a hazardous site even a thousand years from now, let alone a million? Debbi I'd Run With The Bit In My Teeth, If I Knew Exactly Where I Was Going Maru __________________________________ Do you Yahoo!? Yahoo! Hotjobs: Enter the "Signing Bonus" Sweepstakes http://hotjobs.sweepstakes.yahoo.com/signingbonus _______________________________________________ http://www.mccmedia.com/mailman/listinfo/brin-l
