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A Kinetic Model of the Long Term Dose Relevant Carbon Bound Tritium . By Re-Evaluation of Known Kinetic Data. Franz Baumgaertner Institut fuer Radiochemie Technische Universitaet Munich. O rganically B ound T ritium. T issue F ree W ater T ritium.

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a kinetic model of the long term dose relevant carbon bound tritium

A Kinetic Model of theLong Term Dose Relevant Carbon Bound Tritium

By Re-Evaluation of Known Kinetic Data

Franz Baumgaertner

Institut fuer Radiochemie

Technische Universitaet Munich

slide2

Organically Bound Tritium

Tissue Free Water Tritium

Kinetic OBT- and TFWT-measurements answer the question.

  • 1. Hydroponic HTO growth of maize & barley (Bgt & MA. Kim 1995 )
  • 2. HTO exposure of tomatoes (F.S. Spencer 1984)
  • HTO exposure of mussels (S.B. Kim & T.Yankovich & 2004)
  • 4. H2O exposure of HTO grown mussels (S.B.Kim & T. Yankovich 2005)
slide3

Growth of maize (Zea mays “velox“)

20% larger growth rate and

5 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?

Dry weight

20%

OBH

OBT

5x

OBH

Accidental case?

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.

slide4

The accidental case by abrupt HTO exposure after 21 and 26 days tritium free growth:

21 days

Conclusion: there exists an unknown rapid OBT formation.

“Rapid OBT“ found by other authors?

8 h

rapid OBT!

26 days

24 h

rapid OBT!

Within 8h an OBT rise of 15 days growth with HTO

F. Baumgärtner, W. Donhaerl,

Anal Bioanal Chem (2004) 379: 204-209

Franz Baumgärtner,

Fusion Science & Technology Vol 48 (2005) 787-790

slide5

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.”

* buried: means non-accessible

by the rinsing solvent.

14 to 16-weeks old plants, atmospheric HTO exposure.

Figure constructed with TFWT, OBT Data in Appendix 1.

TFWT endpointarrived after 10h

OBT

TFWT

also OBT endpoint

“rapid OBT“ concurrently occurs with TFWT and

“rapid OBT“ halts with TFWT!

63d

7d

35d

OBT = X-atomsBoundTritium

=“buried* tritium in OBT“

rapid OBT

slide6

The OBT Categories of Tomatoe Foliage

336h

=14d

OBT =

CBT+XBT

XBT

OBT = XBT

slide7

Mussel Transplantation Scenario: T.Yankovich & S.B.Kim,Chalk River Laboratories 2004..

Barnes mussels were transplanted from Ontario River to Perch Lake.

Ottawa River

<10Bq/LOttawa River→~4.500Bq/LPerch Lake

Chalk River

Laboratories

slide8

Barnes Mussel Transplantation:

By Tamara Yankovich, Sang Bog Kim. Chalk River Laboratories, 2004,

Endpointarrived after 2h

A

B

TFWT

2 rapid OBT

formations

OBT

OBT(B)= X2BT

OBT(A)=X1BT

slide9

The OBT Categories of Mussel Transplantation Scenario.

Biological growth

Biological

Growth-products

emission

OBT=CBT + X3BT

OBT(night) = XBT

OBT(B) = X2BT

OBT(A) = X1BT

X1BT = (instantaneous) OBT (outside cells)

X2BT = (inside cells) OBT

slide10

Hofmeister Series

dismantles 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)

slide11

If OBT = CBT +XBT(buried)

Long term dose relevant CBT = OBT XBT(buried)

Dry

Biological

Matter

combustion

OBT [Bq/mL] + [mL/g]

Rinsing

Hofmeister

Treatment

Proteins:Guanidinium-CL,

(plants KOH? non elaborated!)

Vhofmeister[mL/g]

Monitoring

endpoint !

Water Fraction

Bio - Fraction

XBT yield shows: long term dose relevant CBT << OBT

slide12

The yield of exchangeable XBTburied by the “Depuration Scenario“

Sang Bog Kim & T. Yankovich, 2005: published during EMRAS 1

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

slide13

Transplantation Scenario

abrupt HTO increase

Depuration Scenario

HTO take off

XBH + TOH XBT + HOH

Evaluation of XBT yield

needs comparisionXBH/XBT

rapid return, X1BH

XBH

XBH

XBH

OBT

Measurements in

Logarithmic Time Scale

Measurements in

Linear Time Scale

CBT

CBT << OBT

slide14

Mean Sigma of 14

measurements <1%

of measured values!

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).

slide15

 ±10% s

OBT

 CBT±10% s

s4%

 CBT

CBT << OBT: special case of mussels? Plants?

slide16

Thanks

forYour Attention!

slide17

The anomaly of water explains the inter-molecular forces in bio-molecules

H-bond in organics

H-bond in water

…H

…HOH…

ROH…

… HOH …

ROH …

liquid

solid

…HOH…

… HOR

… HOH …

… HOR

slide18

Thanks

forYour Attention!

slide19

ETB-07-147 (Revision 0)

2007 July 25

TO: Franz Baumgartner

FROM: T.L. Yankovich and S.B. Kim

CC: P. Davis

Hi 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 Yankovich

Atomic Energy of Canada Limited (AECL)

Environmental Technologies Branch, Stn. 51A

Chalk River Laboratories

Chalk Rver, Ontario K0J 1J0

CANADA

Tel.: +1 (613) 584-8811, ext. 4732

FAX: +1 (613) 584-1221