a kinetic model of the long term dose relevant carbon bound tritium franz baumgaertner institut fuer...
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A Kinetic Model of theLong Term Dose Relevant
Carbon Bound Tritium
Franz Baumgaertner
Institut fuer RadiochemieTechnische Universitaet Munich
By Re-Evaluation of Known Kinetic Data
1. Hydroponic HTO growth of maize & barley (Bgt & MA. Kim 1995 )
2. HTO exposure of tomatoes (F.S. Spencer 1984)
3. HTO exposure of mussels (S.B. Kim & T.Yankovich & 2004)
4. H2O exposure of HTO grown mussels (S.B.Kim & T. Yankovich 2005)
Kinetic OBT- and TFWT-measurements answer the question.
Organically Bound Tritium
Tissue Free Water Tritium
OBT
Growth of maize (Zea mays “velox“)
Franz Baumgärtner, Maria-Anna Kim, Fusion Technology Vol. 28 (1995) 814-820.
Franz Baumgärtner, Maria-Anna Kim, Appl.Radiat.Isot. Vol. 48 (1997) 721-725.
Dry weight
OBH
20% larger growth rate and5 times larger yield of OBT than the carrier OBH cast doubt on the bio-synthesis of the carbon bound tritium, as a tracer, CBT= OBT?
20%
5x
Accidental case?
OBH
8 hrapid OBT!
F. Baumgärtner, W. Donhaerl, Anal Bioanal Chem (2004) 379: 204-209
Franz Baumgärtner, Fusion Science & Technology Vol 48 (2005) 787-790
21 days
The accidental case by abrupt HTO exposure after 21 and 26 days tritium free growth:
Conclusion: there exists an unknown rapid OBT formation.
24 hrapid OBT!
26 days
“Rapid OBT“ found by other authors?
Within 8h an OBT rise of 15 days growth with HTO
F.S.Spencer, Report No 84-69-K, Ontario Hydro 1984
“Tritiated Water Uptake Kinetics in Tissue-Free Water and Organically Bound Fractions of Tomato
Plants.”
OBT
TFWT
14 to 16-weeks old plants, atmospheric HTO exposure.Figure constructed with TFWT, OBT Data in Appendix 1.
7d 35d 63d
rapid OBT
“rapid OBT“ concurrently occurs with TFWT and“rapid OBT“ halts with TFWT!
OBT = X-atomsBoundTritium =“buried* tritium in OBT“
also OBT endpoint
* buried: means non-accessible by the rinsing solvent.
XBT
OBT =
CBT+XBT
The OBT Categories of Tomatoe Foliage
OBT = XBT
336h=14d
420
Perch Lake
kilometers
Clam Sampling Location
Chalk RiverLaboratories
Ottawa River
<10Bq/LOttawa River→~4.500Bq/LPerch Lake
Mussel Transplantation Scenario: T.Yankovich & S.B.Kim, Chalk River Laboratories 2004..
Barnes mussels were transplanted from Ontario River to Perch Lake.
OBT
TFWT
2 rapid OBTformationsA
B
Barnes Mussel Transplantation:
By Tamara Yankovich, Sang Bog Kim. Chalk River Laboratories, 2004,
OBT(A)=X1BT
OBT(B)= X2BT
The OBT Categories of Mussel Transplantation Scenario.
OBT(A) = X1BT
OBT(B) = X2BT
OBT=CBT + X3BT
OBT(night) = XBT
X1BT = (instantaneous) OBT (outside cells) X2BT = (inside cells) OBT
BiologicalGrowth-productsemission
Biological growth
Hofmeister Seriesdismantles biological structures without destroying the constituting chemical compounds.(Hofmeister 1850-1922
The analytical OBT value is a variable
Applied“Hofmeister Series“:6m Urea, 10% Tri-Chlor-Acetic Acid, 1m LiCl.
OBT = CBT + XBT(buried)
Long term dose relevant CBT = OBT XBTXBT(buried)(buried)
DryBiologicalMatter
OBT [Bq/mL] + [mL/g]
HofmeisterTreatmentProteins:Guanidinium-CL,(plants KOH? non elaborated!)Vhofmeister[mL/g]
Monitoring endpoint !
Water Fraction
combustion
XBT yield shows: long term dose relevant CBT << OBT
If OBT = CBT + XBT(buried)
420
Perch Lake
kilometers
Clam Sampling Location
Barnes mussels born and lifelong (>10 years) in Perch Lake (4.500Bq/L) were transplanted to Upper Bass Lake (50Bq/L).
Ottawa River
Chalk River Laboratories
4.500 Bq/LH2O → 50 Bq/LH2O
The yield of exchangeable XBTburied by the “Depuration Scenario“
Sang Bog Kim & T. Yankovich, 2005: published during EMRAS 1
XBH
OBTXBH
CBT
XBH
HTO take off
abrupt HTO increase
XBH + TOH XBT + HOH
rapid return, X1BH
Transplantation Scenario
Depuration Scenario
Measurements inLogarithmic Time Scale
Measurements inLinear Time Scale
Evaluation of XBT yieldneeds comparisionXBH/XBT
CBT << OBT
Table 1: Summary of OBT concentrations measured in mussel soft tissues following transplantation from Perch Lake (a lake that has received chronic, low-level tritium inputs over time) to Upper Bass Lake (a lake with significantly lower tritium concentrations). Duplicate measurements are provided where available. n.a. – not available* - please note that the final time point should be 117 days, as opposed to 115 days (which you included in your earlier email).
OBT DEPURATION DATA
Time (days) ExtrapolatedMeasured OBT ±1 Sigma (Bq/L)
0 n.a. 2,782 ± 25(from Perch Lake)
0.04 2,843 2,847 ± 18
0.08 2,786 2,625 ± 42
0.17 2,683 2,684 ± 62,645 ± 40
0.29 2,662 2,815 ± 22
1 2,619 2,605 ± 242,593 ± 31
2 2,608 2,627 ± 15
5 2,606 2,616 ± 10
12 2,396 2,419 ± 92,371 ± 29
26 2,209 2,254 ± 9
40 1,847 1,826 ± 15
55 1,826 1,897 ± 111,728 ± 33
85 1,844 1,845 ± 8
* 117 1,567 1,621 ± 111,530 ± 17
Mean Sigma of 14 measurements <1% of measured values!
±10%
CBT±10% CBT
OBT
4%
CBT << OBT: special case of mussels? Plants?
Thanksfor Your Attention!
solid
The anomaly of water explains the inter-molecular forces in bio-molecules
…HOH…
… H
OH
…
…HOH…
… H
OH
…
H-bond in water H-bond in organics
ROH…
RO
H …
… HOR
… H
OR
…H
liquid
Thanksfor Your Attention!
ETB-07-147 (Revision 0)2007 July 25TO: Franz BaumgartnerFROM: T.L. Yankovich and S.B. KimCC: P. DavisHi Franz.Hope all is well with you and your family. As requested, please find appended the table containing the measured data for the Dynamic Perch Lake Tritium Mussel Depuration Scenario to fill in the column of the table you sent by email earlier today. Both myself and Sang Bog Kim are very interested in collaborating with you on a publication and look forward to working with you on this! Also, as we plan to publish these data, it would be great if you could let us know prior to using the data for any other documents than the publication we produce together.Thanks for your interest and please feel free to drop me a note if you require any additional information.All the Best!Tamara.Tamara YankovichAtomic Energy of Canada Limited (AECL)Environmental Technologies Branch, Stn. 51AChalk River LaboratoriesChalk Rver, Ontario K0J 1J0CANADATel.: +1 (613) 584-8811, ext. 4732FAX: +1 (613) 584-1221