Dr. Peter H. Santschi

Dr. Peter H.Santschi
Department of Marine Sciences
1001 Texas Clipper Rd
Bld# 3029, Office 346

Galveston, TX, 77554 USA

E-mail: santschi@tamug.edu
Phone: (409) 740-4476
Fax: (409) 740-4786
Website: loer.tamug.edu/Santschi_Research/

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Ph.D. Chemistry, University of Berne, Switzerland, 1975
M.S. Chemistry, University of Berne, Switzerland, 1971
B.S. Gymnasium Berne, Switzerland, Matura 1963

Research Interests:

A broad range of topics in Chemical Oceanography, Limnology and Hydrology, including tracer applications using radioactive and stable isotopes, relationships between trace element and natural organic matter geochemistry, and importance of exopolymeric substances for trace element binding and removal from natural waters. Recent work centered on relationships between actinide elements, 129I, a number of trace and ultra-trace elements, PCBs, dioxins, and natural organic matter, including humic exopolymeric substances in the aquatic environment.

Courses Taught:

Texas A&M University (Graduate):
"Isotope Geochemistry"
“Seminar in Oceanography/Marine Science”
“Dynamics of Environmental Colloids”

 Swiss Institute of Technology (ETH) in Zurich, Switzerland:
"Geochemical Oceanography"
"Radioactivity in the Environment"
“Environmental Colloids”

Hong Kong University of Science and Technology:
"Marine Organic Chemistry"
"Marine Colloids Chemistry"
"Marine Radiochemistry"
Texas A&M University at Galveston (Undergraduate):
"Chemical Oceanography"
"Geological Oceanography"
"Environmental Chemistry"
"Environmental Geology"

Recent Publications since 2014

Chang, H.-S., Xu, C., Schwehr, K.A., Zhang, S., Kaplan, D.I., Seaman, J.C., Yeager, C., and Santschi, P.H. 2014. Model of Radioiodine Speciation and Partitioning in Organic-rich and Organic-poor Soils from the Savannah River Site. Journal of Environmental Chemical Engineering, 2, 1321-1330.

Chuang, C.-Y., Santschi, P.H., Jiang, Y., Ho, Y.-F., Quigg, A., Guo, L.D.,, Ayranov, M., Schumann, D. 2014. Important role of diatoms in the scavenging of particle reactive radionuclides, Thorium, Protactinium, Lead, Polonium and Beryllium, in the ocean: a case study with Phaeodactylum tricornutum. Limnol. Oceanogr., 59(4), 1256–1266.

Chuang, C.-Y., Santschi, P.H., Wen, L.S., Xu, C., Zhang, S., Ho, Y.-F., Schwehr, K.A., Jiang, Y., Ho, Y.F., Schwehr, K.A., Quigg, A., Hung, C.-C., Guo, L.D.,, Ayranov, M., Schumann, D. 2015. Strongly radionuclide (Th, Pa, Pb, Po and Be) binding moieties in marine colloidal organic matter. Marine Chemistry, 173, 320–329.

Emerson, H.P., Xu, C., Ho, Y.-F., Zhang, S., Schwehr, K.A., Lilley, M., Kaplan, D.I., Santschi, P.H., and Powell, B.A. 2014. Geochemical controls of iodine transport in Savannah River Site subsurface environments. Applied Geochem., 45, 105–113.

Hung, C.-C., Gong, G.C., Lee, M.A., Liao, C.H., Chang, Y ., Shih, Y.Y., Chen, K.S., Chen, M.-H., Santschi, P.H. 2014. Impacts of Typhoons on Nutrient Supply and Potential Fish Production in the Southern East China Sea. Typhoon Impact and Crisis Management, 267-282.

Hung, C.-C., Ko, F.-C., Gong, G.-C., Wu, J.-M., Chiang, H.-L., Peng, S.-C., Santschi, P.H. 2014. Changes in zooplankton PAH concentrations across hydrographic fronts in the East China Sea. Marine Pollution Bulletin, 83(1), 248–257.

Hung, C.C., , G-C., Lee, M.-A., Liao, C.-H., Chang, Y., Shih,Y.-Y., Chen, K.-S., Chen, M.-H., Santschi, P.H. 2014. Impacts of Typhoons on Nutrient Supply and Potential Fish Production in the Southern East China Sea. In: Typhoon Impact and Crisis Management, Springer Verlag, Berlin and Heidelberg, pp.267-282.

Kaplan, D. I., M. E. Denham, S. Zhang, C. Yeager, C. Xu, K. A. Schwehr, H. P. Li, Y. F. Ho, D. Wellman, and P. H. Santschi. 2014. Radioiodine Biogeochemistry and Prevalence in Groundwater. Critical Reviews of Environmental Science and Technology, 44(20), 2287-2335.

Kaplan, D.I., Zhang, S., Roberts, K.A., Schwehr, K.A., Xu, C., Creeley, D., Ho, Y.-F., Li, H.-P., Yeager, C.M., and Peter H. Santschi, P.H. 2014. Radioiodine concentrated in a wetland. J. Environmental Radioactivity, 131, 57-61.

Lam, P.J., Twining, B.S., Jeandel, C., Roychoudhury, A., Resing, J., Geibert, W., Santschi, P.H., Anderson, R.F. 2015. Methods for analyzing the concentration and speciation of major and trace elements in marine particles. Progress in Oceanography, 133, 32–42.

Li, H.-P., Daniel, B., Creeley, D., Grandbois, R., Zhang, S., Xu, C., Ho, Y.-F., Schwehr, K.A., Kaplan, D.I., Santschi, P.H., Hansel, C., Yeager, C.M. 2014. Superoxide production by a manganese-oxidizing bacterium facilitates iodide oxidation. Applied and Environmental Microbiology, 80(9), 2693-2699.

Quigg, A., Chin, W.-C., Chen, C.-S., Zhang, S., Jiang, Y., Miao, A.-J., Schwehr, K.A., Xu, C., and Santschi, P.H. 2013. Direct and indirect toxic effects of engineered nanoparticles on algae: role of natural organic matter. In: Special Issue on Sustainable Nanotechnology in ACS Sustainable Chemistry & Engineering, 1, 686702; dx.doi.org/10.1021/sc400103x |

Schwehr, K.A., Otosaka, S., Merchel, S., Kaplan, D.I., Zhang, S., Xu, C., Li, H.-P., Ho, Y.-F., Yeager, C.M., Santschi, P.H., ASTER Team. 2014. Speciation of iodine isotopes inside and outside of a contaminant plume at the Savannah River Site. Science of the Total Environment, 497–498, 671–678.

Xu, C., Athon, M., Ho, Y.-F., Chang, H.-S., Zhang, S., Kaplan, D.I., Schwehr, K.A., DiDonato, N., Hatcher, P.G., Santschi, P.H. 2014. Plutonium Immobilization and Re-mobilization by Soil Mineral and Organic Matter in the Far-field of the Savannah River Site, USA. ES&T, 48, 3186−3195.

Xu, C., Zhang, S., Athon, M., Ho, Y.-F., Li, H.-P., Grandbois, R., Schwehr, K.A., Kaplan, D.I., Yeager, C.M., Wellman, D., Santschi, P.H. 2015. A Re-evaluation of Radioiodine Transformation and Migration in the subsurface of Hanford Site. J. Env. Radioactivity, 139, 43-55.

Yang, W.F., Guo, L.D., Chuang, C.-Y., Santschi, P.H.,, Schumann, D., Ayranov, M. 2013. Influence of macromolecular organic matter on the adsorption of 210Pb, 210Po and 7Be on nanoparticles in seawater. EPSL, in press.

Zhang, S., Ho, Y.-F., Creeley, D., Roberts, K.A., Xu, C., Li, H.-P., Schwehr, K.A., Kaplan, D.I., Yeager, C.M., and Santschi, P.H. 2014. Temporal Variation of Iodine Concentration and Speciation (127I and 129I) in Wetland Groundwater from the Savannah River Site, USA. Environ. Sci. Technol., 48, 11218-11226.


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