[ RadSafe ] Radiation in landfills
Geo>K0FF
GEOelectronics at netscape.com
Tue Jul 17 12:26:49 CDT 2007
Hi Mike, good news, drinking BEER is the antidote for H3 uptake. Enjoy
http://www.hps.org/publicinformation/ate/q3753.html
There are a LOT or tritium atoms in an exit sign. ( ~25 Curies or 2.5 mg)
SEE:
http://www.ecolo.org/documents/documents_in_english/tritium_exit_signs-07.htm
http://www.epa.gov/radtown/exit-signs.htm
Exit signs are generally licensed, but can only be transferred to a person
who are licensed, not dumped in a landfill. See the notification here:
http://www.orau.org/PTP/collection/radioluminescent/h3exitsignl.htm
Disposal fees range from $65.00- $130.00 USD.
Tritium, H3 is a pure low energy beta emitter. 100% 0.018601 MeV, T/2=
12.280 Years. (C. Hacker Ver. 3.6)
George DowellNLNLNew London Nucleonics Lab56791 Rivere Au Sel Pl.New London,
MO 63459GEOelectronics at Netscape.com573-221-3418
----- Original Message -----
From: "Brennan, Mike (DOH)" <Mike.Brennan at DOH.WA.GOV>
To: <radsafe at radlab.nl>
Sent: Tuesday, July 17, 2007 11:12 AM
Subject: RE: [ RadSafe ] Radiation in landfills
Hi, Franz.
I have on several occasions sampled leachete from land fills, and our lab
has reported finding tritium at puzzling concentrations. The consensus is
that the tritium comes from exit signs that were disposed of in the
landfill, and on which the tubes containing the tritium gas were broken when
the garbage was compacted.
While I don't have a solid reason, I remain dubious of this explanation. It
doesn't "feel" right to me. I asked the chemists about contaminates that
might give false positives some how, and was told that the lab was confident
that was not the case. I remain very open to suggestions beyond exit signs
and watch hands, or, as one of our activist groups claims, midnight dumpings
of drums of reactor primary coolant water into the landfill.
I am, however, quite satisfied of one thing: the tritium in the leachete
does not constitute a public health risk. Should someone be drinking enough
leachete to gain a noticeable body burden (and do it on a regular basis, as
tritium has a 12 day biological half-life, and they would need to replenish
often), they should live so long that the rad becomes a health issue. The
chemical hazards are far greater, though my bet is that the pathogens would
get them first. That they would drink landfill leachete in the first place
hints at some non-trivial mental health issues that I would really have
someone look into.
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