U.S. Department of Energy

Pacific Northwest National Laboratory

Jon Schwantes

Nuclear Security Lead
Jon Schwantes
(509) 375-7378

Dr. Schwantes is a senior scientist at PNNL with over 20 years of experience as a radiochemist working in areas related to the environment, super-heavy element chemistry and physics, astrophysical nucleosynthesis, science-based stockpile stewardship, and nuclear forensics. This work has included the development of novel methods for extracting and detecting radionuclides from fresh and marine waters, integrating these methods with compact, autonomous, in situ, detection systems developed in-house. He has authored or coauthored nearly 70 peer-reviewed journal articles, was part of the confirmatory team for the discovery of element 111 (subsequently named roentgenium), and led a team of researchers in 2009 that identified the oldest known reactor-produced plutonium in the world. Dr. Schwantes currently serves as a co-chair of the Exercise Task Group for the Nuclear Forensics International Technical Working Group (ITWG) and helped develop a course on basic nuclear forensic methodologies for practitioners for the International Atomic Energy Agency and the U.S. National Nuclear Security Agency. In May 2014, Dr. Schwantes was appointed by the Secretary of Energy to serve as part of a five-person, five-laboratory, Technical Assessment Team to investigate a major contamination event at the Waste Isolation Pilot Plant that occurred in February 2014.

Education and Credentials

  • Bachelor's Degree, Marine Sciences
  • Doctorate, Civil (Environmental) Engineering

Affliliations and Professional Service

  • Exercise Task Group Co-Leader, Nuclear Forensics International Technical Working Group (ITWG), 2012-present
  • U.S. National Committee (USNC) Representative, International Union of Pure and Applied Chemistry (IUPAC), 2011-present
  • Lead, Destructive Assay User’s Group, Institute for Nuclear Materials Management (INMM), 2011-2015
  • Department of Nuclear Engineering, Pennsylvania State University, Outside Committee Member, 2010-2014
  • Department of Chemistry, University of Missouri at Columbia, Outside Committee Member, 2009-2012

Patents

  • Mausolf EJ, EC Buck, and JM Schwantes. 2015. Nuclear Fuel Compositions, Methods for Preparing Nuclear Fuel and/or Processing Used Nuclear Fuel, U.S. Provisional Patent App. No. 61/895,313. WO 2015061013 A1.
  • Duckworth DC, JI Friese, SM Peper, M Douglas, JM Schwantes, M Liezers, and SA Lehn. 2010. Electrochemically Modulated Separations for In-line and At-line Monitoring of Actinides in High-Volume Process Streams, U.S. 20100219344 A1, US 12/394,491.

Publications

  • Buck EC, EJ Mausolf, BK Mcnamara, CZ Soderquist, and JM Schwantes. 2015. "Nanostructure of Metallic Particles in Light Water Reactor Used Nuclear Fuel," Journal of Nuclear Materials 461:236-243.  doi:10.1016/j.jnucmat.2015.03.001
  • Palomares RI, KJ Dayman, S Landsberger, SR Biegalski, CZ Soderquist, AJ Casella, MC Brady Raap, JM Schwantes. 2015. "Measuring the noble metal and iodine composition of extracted noble metal phase from spent nuclear fuel using instrumental neutron activation analysis," Applied Radiation and Isotopes 98:66-70.  
  • Clark RA, CJ Barinaga, BK McNamara, JM Schwantes, and NE Ballou.  2015. "Selective Fluorination and Separation of Metals with NF3 for Mass Spectrometry," Journal of Radioanalytical and Nuclear Chemistry. doi:10.1007/s10967-015-4392-y
  • Clark RA, BK McNamara, CJ Barinaga, JM Peterson, N Govind, A Andersen, DG Abrecht, JM Schwantes, and NE Ballou. 2015. "Electron Ionization Mass Spectrum of Tellurium Hexafluoride," J. Inorg. Chem. doi:0.1021/acs.inorgchem.5b00342.  
  • Abrecht DG, JM Schwantes, RK Kukkadapu, BS McDonald, and LE Sweet. 2015. "Real-Time Noise Reduction for Mossbauer Spectroscopy through Online Implementation of a Modified Kalman Filter," Nuclear Instruments and Methods in Physics Research, Section A, Accelerators, Spectrometers, Detectors and Associated Equipment 773:66-71.  doi:10.1016/j.nima.2014.10.053
  • Abrecht DG and JM Schwantes. 2015. "Linear Free Energy Correlations for Fission Product Release from the Fukushima-Daiichi Nuclear Accident," Environmental Science & Technology. doi:10.1021/es5053733. 
  • Dayman KJ, JB Coble, CR Orton, and JM Schwantes. 2014. "Characterization of Used Nuclear Fuel with Multivariate Analysis for Process Monitoring,"  Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment 746:624-632.
  • Schwantes JM. 2013. Nuclear Forensics International Technical Working Group (ITWG): a collaboration of scientists, law enforcement officials, and regulators working to combat nuclear terrorism and proliferation, Institute for Nuclear Materials Management Communicator, October, PNNL-SA-99102.
  • Schwantes JM, SA Bryan, CR Orton, TG Levitskaia, SH Pratt, CG Fraga, and JB Coble. 2013. "Advanced process monitoring safeguards technologies at Pacific Northwest National Laboratory," In ATALANTE 2012 International Conference on Nuclear Chemistry for Sustainable Fuel Cycles. PNNL-SA-93285, Pacific Northwest National Laboratory, Richland, WA
  • Bender S, K Unlu, CR Orton, and JM Schwantes. 2013. "Geant4 Model Validation of Compton Suppressed System for Process monitoring of Spent Fuel," Journal of Radioanalytical and Nuclear Chemistry 296(2):647-654.
  • Clark RA, DE Robertson, JR, ED Walter, and JM Schwantes. 2012. "Intrinsic Dosimetry: Role of Boron Oxygen Hole Centers in the Thermoluminescence of Commercial Borosilicate Glass, J. of Radioanalyt. Nucl. Chem.
  • Clark RA, JD Robertson, and JM Schwantes. 2013. “Intrinsic Dosimetry: Elemental Composition Effects on the Thermoluminescence of Commercial Borosilicate Glass,” Radiation Measurements 59:270-276.
  • Sweet LE, TA Blake, CH Henager, Jr, SY Hu, TJ Johnson, DE Meier, SM Peper, and JM Schwantes. 2013. "Investigation of the Polymorphs and Hydrolysis of Uranium Trioxide." Journal of Radioanalytical and Nuclear Chemistry 296(1):105-110.
  • Johnson B, PS Santschi, C-Y Chuang, S Otosaka, RS Addleman, M Douglas, R Rutledge, W Chouyyok, J Davidson, G Fryxell, and JM Schwantes. 2012. "Collection of Lanthanides and Actinides from Natural Waters with Conventional and Nanoporous Sorbents," Environmental Science and Technology 46(20):11251-11258.
  • Schwantes JM, SA Bryan, CR Orton, TG Levitskaia, SH Pratt, CG Fraga, JB Coble. 2012. "Advanced process monitoring safeguards technologies at Pacific Northwest National Laboratory," Proceedia Chemistry 7:716-724.
  • Clark RA, JD Robertson, ED Walter, SD Miller, and JM Schwantes. 2013. “Intrinsic Dosimetry of Glass Containers: A Potential Interrogation Tool for Nuclear Forensics and Waste Management,” Journal of Radioanalytical and Nuclear Chemistry 296(2):663-668.
  • Schwantes JM, RA Clark, CR Orton. 2012. “Analysis of a Nuclear Accident: Fission and Activation Product Releases from the Fukushima Daiichi Nuclear Facility as Remote Indicators of Source Identification, Extent of Release, and State of Damaged Spent Nuclear Fuel,” Environmental Science and Technology 46(16):8621-8627.
  • Schwantes JM, SA Bryan, CR Orton, TG Levitskaia, and CG Fraga, 2012. “Monitoring, Controlling and Safeguarding Radiochemical Streams at Spent Fuel Reprocessing Facilities, Part 2: Gamma-Ray Spectroscopic Methods,” International Journal on Nuclear Energy Management and Safety, 10.5848/IJNEMS.2012.00003.
  • Bryan SA, TG Levitskaia, JM Schwantes, CR Orton, JM Peterson, and AJ Casella. 2012. “Monitoring, Controlling and Safeguarding Radiochemical Streams at Spent Fuel Reprocessing Facilities, Part 1: Optical Spectroscopic Methods,” International Journal on Nuclear Energy Management and Safety, 10.5848/IJNEMS.2012.00002.
  • Orton CR, CG Fraga, R Christensen, and JM Schwantes. 2012. "Proof of Concept Experiments of the Multi-Isotope Process Monitor: An Online, Nondestructive, Near Real-Time Monitor for Spent Nuclear Fuel Reprocessing Facilities," Nuclear Instruments and Methods in Physics Research A 672:38-45.
  • Johnson BE, PH Santschi, RS Addleman, M Douglas, JD Davidson, GE Fryxell, and JM Schwantes. 2011. "Optimization and evaluation of mixed-bed chemisorbents for extracting fission and activation products from marine and fresh waters," Analytica Chimica Acta 708:52-60. doi:10.1016/j.aca.2011.08.017
  • Hanlen RC and JM Schwantes. 2011. Nuclear Forensics International Technical Working Group Round Robin 3 Exercise Results In INMM 52nd Annual Meeting. PNNL-SA-80556, Pacific Northwest National Laboratory, Richland, WA.
  • Orton CR, CE Rutherford, CG Fraga, and JM Schwantes. 2011. "The Multi-Isotope Process Monitor: Multivariate Analysis of Gamma Spectra,"  In INMM_Institute of Nuclear Materials Management (INMM), 52nd. PNNL-SA-80601, Pacific Northwest National Laboratory, Richland, WA. 
  • Orton CR, CG Fraga, R Christensen, and JM Schwantes. 2011. "Proof of Concept Simulations of the Multi-Isotope Process Monitor: An Online, Nondestructive, Near-Real-Time Safeguards Monitor for Nuclear Fuel Reprocessing Facilities," Nuclear Instruments and Methods in Physics Research. Section A 629(1):209-219.
  • Johnson BE, PH Santschi, RS Addleman, M Douglas, JD Davidson, GE Fryxell, and JM Schwantes. 2011. "Collection of fission and activation product elements from fresh and ocean waters: a comparison of traditional and novel sorbents." Applied Radiation and Isotopes 69(1):205-216.  doi:10.1016/j.apradiso.2010.07.025
  • Schwantes JM and PH Santschi. 2010. "Mechanisms of plutonium sorption to mineral oxide surfaces: New insights with implications for colloid-enhanced migration," Radiochimica Acta 98(9-11), Migration 2009, pp. 737-742.
  • Orton CR, CG Fraga, M Douglas, R Christensen, and JM Schwantes.  2009. "Monitoring spent nuclear fuel reprocessing conditions non-destructively and in near-real-time using the Multi-Isotope Process (MIP) Monitor," In 2nd JAPAN-IAEA Workshop on Advanced Safeguards Technology for the Future Nuclear Fuel Cycle, Tokai, Japan. PNNL-SA-70111, Pacific Northwest National Laboratory, Richland, WA.
  • Orton C, C Fraga, M Douglas, R Christensen, and JM Schwantes. 2009. "Experimental Validation of the Multi-Isotope Process Monitor Concept," American Nuclear Society, Proceedings of Global 2009, September 6-11, Paris.
  • Schwantes JM, RS Addleman, JD Davidson, M Douglas, D Meier, OD Mullen, M Myjak, ME Jones, ML Woodring, B Johnson, and PH Santschi. 2009. "Medium resolution in situ gamma detection system for marine and coastal waters," Journal of Radioanalytical and Nuclear Chemistry 282(3): 889.
  • Schwantes JM, SD Miller, K Piper, M Murphy, JE Amonette, S Bonde, and D Duckworth. 2009. "Intrinsic dosimetry of glass containers used to transport nuclear materials: Potential implications to the fields of waste management and nuclear forensics," Radiation Measurements 44:405-408.
  • Schwantes JM M Douglas, S Bonde, JD Briggs, OT Farmer, L Greenwood,  E Lepel, C Orton, J Wacker, and A Luksic. 2009. "Nuclear Archeology in a Bottle: Evidence of Pre-Trinity U.S. Weapons Activities from a Waste Burial Site," feature in Analytical Chemistry 81(4):1297.
  • Schwantes JM, CR Orton, CG Fraga, M Douglas, and RN Christensen. 2009. "The Multi-Isotope Process (MIP) Monitor: a Near-Real-Time, Non-Destructive, Indicator of Spent Nuclear Fuel Reprocessing Conditions," 50th Annual International Nuclear Materials Management Conference, PNNL-SA-64479..
  • Arrigo LM, CR Orton, JM Schwantes, S Bryan, T Levitskaia, D Duckworth, M Douglas, C Fraga, M Liezers, S. Peper, and RN Christensen. 2009. "Advanced Safeguards Technology Demonstration at Pacific Northwest National Laboratory," 50th Annual International Nuclear Materials Management Conference.
  • Green MA, LM Arrigo, M Liezers, C Orton, M Douglas, SM Peper, JM Schwantes, and DC Duckworth. 2009. "Electrochemically-Modulated Separations for Destructive and Nondestructive Analysis for Process Monitoring and Safeguards Measurements," 50th Annual International Nuclear Materials Management Conference.
  • Schwantes JM, M Douglas, CR Orton, C Fraga and RN Christensen. 2008. "Multi-Isotope Process (MIP) Monitor: a Near-Real-Time Monitor for Reprocessing Facilities," ANS Transactions.
  • Peper SM M Liezers, OT Farmer, III, M Douglas, JM Schwantes, SA Lehn, and DC Duckworth. 2008.. "A Novel Approach to Near Real Time Non-destructive Analysis of Pu For Process Monitoring and Material Safeguards." Institute of Nuclear Materials Management 49th Annual Meeting, Nashville, TN.
  • Orton CR, JM Schwantes, SA Bryan, TG Levitskaia, DC Duckworth, M Douglas, OT Farmer, III, CG Fraga, SA Lehn, M Liezers, SM Peper, and R Christensen. 2008. "Advanced Safeguards Technology Demonstration at Pacific Northwest National Laboratory," Institute of Nuclear Materials Management 49th Annual Meeting, Nashville, TN.
  • Schwantes JM, SD Miller, K Piper, M Murphy, JE Amonette, S Bonde, and D Duckworth. 2008. "Iintrinsic Dosimetry of Glass Containers used to Transport Nuclear Materials: Potential Implications to the Field of Nuclear Forensics," 8th International Conference on Facility Operations – Safeguards Interface, March 30-April 4, Portland, OR.
  • Smith LE, JM Schwantes, M Douglas, JJ Ressler, C Durst, CR Orton, and RN Christensen. 2008. "Next-Generation Online MC&A Technologies for Reprocessing Plants," American Nuclear Society, Global 2007: Advanced Fuel Cycles and Systems, September 13, Boise, ID.
  • Esch E-I, R Reifarth, EM Bond, TA Bredeweg, A Couture, SE Glover, U Greife, RC Haight, AM Hatarik, R Hatarik, M Jandel, T Kawano, JM O'Donnell, RS Rundberg, JM Schwantes, JL Ullmann, DJ Vieira, JB Wilhelmy, and J.M. Wouters. 2008. "The 237Np(n,g) cross section between 20 meV and 500 keV," Journal of the American Physical Review C 77(3)(034309-1-10).
  • Schwantes JM, WA Taylor, RS Rundberg, R Sudowe, H Nitsche, DC Hoffman, DJ Vieira, 2008. "A multi-curie 171Tm target for DANCE," Journal of Radioanalytical and Nuclear Chemistry 276(2):533-542.
  • Schwantes JM, R Sudowe, H Nitsche, DC Hoffman. 2008. "Applications of solvent extraction in the high-yield multi-process reduction/separation of Eu from excess Sm," Journal of Radioanalytical and Nuclear Chemistry 276(2): 543-548.
  • Agvaanluvsan U, JA Becker, RA Macri, W Parker, P Wilk, CY Wu, TA Bredeweg, E Esch, RC Haight, JM O’Donnell, R Reifarth, RS Rundberg, JM Schwantes, JL Ullmann, DJ Vieira, JB Wilhelmy, JM Wouters, GE Mitchell, S Sheets, F Bečvář, and M Krtička. 2007. "Progress on the europium neutron capture study using DANCE," Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 261(1-2):934-937.
  • Reifarth R, U Agvaanluvsan, A Alpizar-Vicente, TA Bredeweg, E.-I Esch, U Greife, RC Haight, R Hatarik, F Herwig, JM O’Donnell, RS Rundberg, JM Schwantes, JL Ullmann, DJ Vieira, JM Wouters. 2006. "Neutron capture rates on radioactive nuclides – DANCE," New Astronomy Reviews 50:644-647.
  • Wouters JM, Vicente AA, Bredeweg TA, Esch E, Haight RC, Hatarik R, O'Donnell JM, Reifarth R, Rundberg RS, Schwantes JM, Sheets SA, Ullmann JL, Vieira DJ, Wilhelmy JB. 2006. "Acquisition - Analysis system for the DANCE (Detector for Advanced Neutron Capture Experiments) BaF2 gamma-ray calorimeter," IEEE TRANS. NUC. SCI., 53(3):880-885, Part 1.
  • Schwantes JM, RS Rundberg, WA Taylor, DJ Vieira. 2006. "Rapid, high-purity lanthanide separations using HPLC," J. Alloys Comp. 418:189-194.
  • Schwantes JM and B Batchelor. 2006. "Simulated Infinite Dilution Leach Test," Environmental Engineering Science: Special Edition on Contaminant Leachability from Cemented and Particulate Media, 23, 1, 4-13.
  • Sudowe RM, GCalvert, ChE Düllmann, LM Farina, CM Folden, III, KE Gregorich, SEH Gallaher, DCHoffman, SLNelson, DC Phillips, JM Schwantes, RE Wilson, PM Zielinski, and H Nitsche. 2006. "Extraction of short-lived zirconium and hafnium isotopes using crown ethers: A model system for the study of rutherfordium," Radiochim. Acta 94:123–129.
  • Folden III, CM, SL Nelson, ChE Düllmann, JM Schwantes, R Sudowe, PM Zielinski, KE Gregorich, H Nitsche, DC Hoffman. 2006. "Excitation function for the production of 262Bh(Z=107) in the odd-z-projectile reaction 208Pb(55Mn, n)," Phys. Rev. C 014611.73,
  • Bredeweg TA, MM Fowler, JA Becker, EM Bond, MB Chadwick, RRC Clement, E-I Esch, T Ethvignot, T Granier, LF Hunt, RA Macri, JM O'Donnell, RS Rundberg, JM Schwantes, JL Ullmann, DJ Vieira, JB Wilhelmy, JM Wouters, C-Y Wu, and JE Yurkon. 2006. "Simultaneous measurement of (n,) and (n,fission) cross sections with the DANCE 4 BaF2 array," AIP Conference Proceedings, March 13, 2006, Volume 819, pp. 568-569, Capture Gamma-Ray Spectroscopy and Related Topics: 12th International Symposium.
  • Agvaanluvsan U, A Alpizar-Vicente, JA Becker, F Becvár, TA Bredeweg,  R Clement, E Esch, CM Folden, III, R Hatarik, RC Haight, DC Hoffman,  M Krticka, RA Macri, GE Mitchell, H Nitsche, JM O'Donnell, W Parker,  R Reifarth, RS Rundberg, JM Schwantes, SA Sheets, JL Ullmann, DJ Vieira,  JB Wilhelmy, P Wilk, JM Wouters, CY Wu. 2006. "The Radiative Strength Function Using the Neutron-Capture Reaction on 151,153Eu." 12th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics, September 4-9, 2005 Notre Dame, Indiana. AIP Conference Proceedings, Vol. 819. A Woehr and A Aprahamian (eds.) Melville, NY: American Institute of Physics, p.295-299.
  • Rundberg RS, TA Bredeweg, EM Bond, RC Haight, LF Hunt, A Kronenberg, JM O'Donnell, JM Schwantes, JL Ullmann, DJ Vieira, JB Wilhelmy, and JM Wouters. 2006. "Neutron Capture Cross Sections of 236U and 234U," AIP Conference Proceedings, March 13, 2006, Vol. 819, pp. 312-317, Capture Gamma-Ray Spectroscopy and Related Topics: 12th International Symposium.
  • Abdel-Wahab A, B Batchelor, J Schwantes. 2005. "An Equilibrium Model for Chloride Removal from Recycled Cooling Water Using the Ultra-High Lime with Aluminum Process, Water Environment Research 77(7):3059-3065..
  • Reifarth R, E-I Esch, A Alpizar-Vicnete, EM Bond, TA Bredeweg, SE Glover, U Greife, R Hatarik, RC Haight, A Kronenberg, JM O’Donnell, RS Rundberg, JM Schwantes,  JL Ullmann, DJ Vieira, JB Wihelmy, and JM Wouters. 2005. "(n,g) measurements on radioactive isotopes with DANCE," Nucl. Instr. Meth.B. 241:176-179.
  • Reifarth R, A Alpizar-Vicente, R Hatarik, TA Bredeweg, E-I Esch, U Greife, RC Haight, A Kronenberg, JM O'Donnell, RS Rundberg, JM Schwantes, JL Ullmann, DJ Vieira, and JM Wouters. 2005. "Nuclear Astrophysics at DANCE, AIP Conference Proceedings, May 24, 2005,  Vol .769, pp. 1323-1326, International Conference on Nuclear Data for Science and Technology.
  • Rochman D, RC Haight, SA Wender, JM O'Donnell, A Michaudon, K Huff, DJ Vieira, E Bond, RS Rundberg, A Kronenberg, J Wilhelmy, TA Bredeweg, J Schwantes, T Ethvignot, T Granier, M Petit, and Y Danon. 2005. "First Measurements with a Lead Slowing-Down Spectrometer at LANSCE," AIP, International Conference on Nuclear Data for Science and Technology, pp. 736-739.
  • Ullmann JL, U Agvaanluvsan, A Alpizar, EM Bond, TA Bredeweg, E-I Esch, CM Folden, U Greife, R Hatarik, RC Haight, DC Hoffman, L Hunt, A Kronenberg, JM O'Donnell, R Reifarth, RS Rundberg, JM Schwantes, DD Strottman, DJ Vieira, JB Wilhelmy, and JM Wouters. 2005. "The Detector for Advanced Neutron Capture Experiments: A 4 BaF2 Detector for Neutron Capture Measurements at LANSCE," AIP Conference Proceedings, May 24, 2005, Vol. 769, pp. 918-923, International Conference on Nuclear Data for Science and Technology.
  • Gregorich KE, W Loveland,  D Peterson,  PM Zielinski, SL Nelson, YH Chung, ChE Düllmann, CM. Folden, III, K Aleklett, R Eichler, DC Hoffman, JP Omtvedt, GK Pang, JM Schwantes, S Soverna, P Sprunger, R Sudowe, RE Wilson, and H Nitsche. 2005. "Attempt to confirm superheavy element production in the 48Ca + 238U reaction," Phys. Rev. C. 72:014605.
  • Folden III, CM, KE Gregorich, ChE Düllmann, AH Mahmud, GK Pang, JM Schwantes, R Sudowe, PM Zielinski, H Nitsche, and DC Hoffman. 2004. "Development of an Odd-Z-Projectile Reaction for Heavy Element Synthesis: 208Pb(64Ni,n)271Ds and 208Pb(65Cu,n)272111, Phys. Rev. Lett. 93 (21):212702-1 – 212702-4.
  • Schwantes JM. 2004. "Re-evaluating Effects of Sorption Kinetics on Colloid-enhanced Migration of Plutonium." Paper Proceedings from Waste Management Symposium ‘04. Tucson, AZ, February 29 to  March 4, 2004.  WM Symposia, Inc., http://www.wmsym.org, Lawrence Berkeley National Lab Report Number: LBNL-54330.
  • Schwantes JM and B Batchelor. 2003. "Sorption Constants for Pu(III) — Pu(VI) onto Mineral Oxide Surfaces," Pu Futures – The Science, AIP 673: 377.
  • Abdel-Wahab A, B Bachelor, and JM Schwantes. 2002. "An Equilibrium model from Chloride Removed from Recycled cooling water using Ultra-High Lime with Aluminum Process," WEFTEC Conference Proceedings.
  • Schwantes JM and B Batchelor. 2000. "Equilibrium, kinetic and reactive transport models for Pu: employing numerical methods to uncover the nature of the intrinsic colloid," Plutonium Futures – The Science, AIP 532:292-298.
  • Baskaran M, S Asbill, JM Schwantes, PH Santschi, M Champ, J Brooks, D Adkinson, and V Makeyev. 2000. "Concentrations of 137Cs, 239,240Pu and 210Pb in sediment samples from Pechora Sea and biological samples from the Ob and Yenisey Rivers and the Kara Sea," Marine Pollution Bulletin 40(10):830-838.
  • Schwantes JM. 1997. "Anthropogenic and natural radionuclides over the Siberian Shelf," Quarterdeck 5(1):23.
  • Benoit G, JM Schwantes, G Jacinto, and M Goud-Collins. 1995.  "Preliminary study of the redistribution and transformation of HgS from cinnabar mine tailings deposited in Honda Bay, Palawan, Philippines,"  Oceanographic Literature Review 42(6):504.
  • Benoit G, JM Schwantes, G Jacinto, and M Goud-Collins. 1994.  "Preliminary study of the redistribution and transformation of HgS from cinnabar mine tailings deposited in Honda Bay, Palawan, Philippines,"  Marine Pollution Bulletin, 28(12):754-759.

 

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