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Details of Dr. Laodong Guo   


Gender male
Job title Professor
Department School of Freshwater Sciences
University of Wisconsin-Milwaukee (
600 East Greenfield Avenue Milwaukee 53204
University of Wisconsin-Milwaukee 600 East Greenfield Avenue
United States
Regions Sea of Azov
Tel 414-382-1742
Fax 414-382-1705
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Website http://home.freshwater.uwm.edu/guo/
Social Media Links
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Degree PhD
Job type Teaching/Education
Research Area(s) Chemical Oceanography , Limnology , Chemical Oceanography , Limnology
Research Activities Biogeochemical cycling of carbon, nutrients and trace elements in aquatic systems; Role of colloids, nanoparticles, and biopolymers in the scavenging of radionuclides and trace elements in the ocean; Fate and transport of oil and dispersant in the Gulf of Mexico; Physicochemical processes at the land-ocean, particle-water, and biota-water interfaces; Biogeochemical consequences of climate and environmental change.
Research Region 34, 35 , 36, 72
Working languages English
Skills/Expertise Organic carbon cycling, nutrient speciation, sampling and characterization of aquatic colloids and nanoparticles, applications of radionuclides and stable isotopes, colored dissolved organic matter (CDOM), dynamics of permafrost soil organic carbon.
PUBLICATIONS (as reported by Dr. Laodong GUO)

Stolpe, B., Guo, L., Shiller, A.M. and Aiken, G.R. 2013. Abundance, size distributions and trace-element binding of organic and iron-rich nanocolloids in Alaskan rivers as revealed by flow field flow fractionation and ICP-MS. Geochim. Cosmochim. Acta, 105, 221-239, doi:10.1016/j.gca.2012.11.018.
Stolpe, B., Guo, L. and Shiller, A.M. 2013. Binding and transport of rare earth elements by organic and iron-rich nanocolloids in Alaskan rivers, as revealed by field-flow fractionation and ICP-MS . Geochim. Cosmochim. Acta, 106, 446-462, http://dx.doi.org/10.1016/j.gca.2012.12.033.
Yang, W., Guo, L. Chuang, C.Y., Schumann, D., Ayranov, M., and Santschi, PH. 2013. Adsorption characteristics of 210Pb, 210Po and 7Be onto microparticle surfaces and the effects of macromolecular organic matter. Geochim. Cosmochim. Acta, 107, 47-64. doi: 10.1016/j.gca.2012.12.039.
Cai, Y., Guo, L., Wang, X., Lohrenz, S.E., and Mojzis, A.K. 2013. Effects of tropical cyclones on river chemistry: A case study of the lower Pearl River during Hurricanes Gustav and Ike. Estuarine, Coastal and Shelf Science, doi: 10.1016/j.ecss.2013.05.019.
Wang, X., Cai, Y. and Guo, L. 2013. Variations in abundance and size distribution of carbohydrates in the lower Mississippi River, Pearl River and the Bay of St Louis. Estuarine, Coastal and Shelf Science, 126, 61-69, doi: 10.1016/j.ecss.2013.04.008 .
Zhou, Z., Guo, L., Shiller, A.M., Lohrenz SE, Asper VL and Osburn CL. [2013] Characterization of oil components from the Deepwater Horizon oil spill in the Gulf of Mexico using fluorescence EEM and PARAFAC techniques. Marine Chemistry, 148, 10-21, http://dx.doi.org/10.1016/j.marchem.2012.10.003.
Zhou, Z., Liu, Z. and Guo, L. [2013] Tracking chemical evolution of crude oil during degradation using fluorescence EEM and hydrocarbon composition. Marine Pollution Bulletin, 66, 164-175, http://dx.doi.org/10.1016/j.marpolbul.2012.09.028.
Guo, L., Cai, Y., Belzile, C. and Macdonald, R. 2012. Sources and export fluxes of inorganic and organic carbon and nutrient species from the seasonally ice-covered Yukon River. Biogeochemistry, 107: 187-206, http://dx.doi.org/10.1007/s10533-010-9545-z.
Cai, Y., Guo, L., Wang, X., Mojzis, A. K. and Redalje, D. 2012. The source and distribution of dissolved and particulate organic matter in the Bay of St Louis in the northern Gulf of Mexico. Estuarine, Coastal and Shelf Science, 96, 96-104, http://dx.doi.org/10.1016/j.ecss.2011.10.017.
Lin, P., Chen, M., Guo, L. 2012. Speciation and transformation of phosphorus and its mixing behavior in the Bay of St. Louis estuary in the northern Gulf of Mexico. Geochimca. Cosmochim. Acta. 87, 283-298. http://dx.doi.org/10.1016/j.gca.2012.03.040.
Shiller, A.M., Shim, M.J., Guo, L., Bianchi, T.S., Smith, R. Duan, S. 2012. Hurricane Katrina impact on water quality in the east Pearl River, Mississippi. Journal of Hydrology, 414/415: 388-392, http://dx.doi.org/10.1016/j.jhydrol.2011.11.010.
Yang, W. and Guo, L. 2012. Depositional fluxes and residence time of atmospheric radioiodine (I-131) from Fukushima accident. Journal of Environmental Radioactivity, 113, 32-36, http://dx.doi.org/10.1016/j.jenvrad.2012.04.003.
Chen, M., Ma, Q., Guo, L., Qiu, Y., Li, Y., and Yang, W. 2012. Importance of lateral transport on 210Pb budget in the eastern Chukchi Sea. Deep-Sea Res. II, http://dx.doi.org/10.1016/j.dsr2.2012.03.011.
Zhang, R., Chen, M., Guo, L., Ma, Q., Gao, Z., Cao, J.P., Qiu, Y., and Li, Y. 2012. Variations in the isotopic composition of particulate organic carbon and their relation with carbon dynamics in the western Arctic Ocean. Deep-Sea Res. II, http://dx.doi.org/0.1016/j.dsr2.2011.05.005.
Lin, P., Guo, L., Chen, M., Tong, J. and Lin, F. 2012. The distribution and chemical speciation of dissolved and particulate phosphorus in the Bering Sea and the Chukchi-Beaufort seas. Deep-Sea Research II, http://dx.doi.org/10.1016/j.dsr2.2012.07.005.
Ping, C.-L., G.J. Michaelson, L. Guo, M.T. Jorgenson, M. Kanevskiy, Y. Shur, F. Dou and J. Liang. 2011. Soil carbon and material flux across the eroding coastline of the Beaufort Sea, Alaska. JGR-Biogeosciences, 116, G02004, http://dx.doi.org/10.129/2010JG001588.
Xu, C., Santschi, P. H., Hung, C.-C., Zhang, S., Schwehr, K,A., Roberts, K.A., Guo, L., Gong, G.-C., Quigg, A., Long, R., Pinckney, J., Duan, S.W., Amon, R., and Wei, C.L. 2011. Controls of Th-234 removal from the oligotrophic ocean by polyuronic acids and microbial activity. Mar. Chem. 123, 111-126, http://dx.doi.org/10.1016/j.marchem.2010.10.005.
Wang, X., Cai, Y. and Guo, L. 2010. Preferential removal of dissolved carbohydrates during estuarine mixing in the Bay of Saint Louis in the northern Gulf of Mexico. Marine Chemistry, 119, 130-138, doi: 10.1016/j.marchem.2010.01.006.
Stolpe, B., Guo, L. Shiller, A. and Hassellov, M. 2010. Size and composition of colloidal organic matter and trace elements in the Mississippi River, Pearl River and the northern Gulf of Mexico as characterized by flow field-flow fractionation. Marine Chemistry, 118: 119-129, doi:10.1016/j.marchem.2009.11.007.
Dou, F., Yu, X., Ping, C.L., Michaelson, G., Guo, L. and Jorgenson, M. T. 2010. Spatial variation of tundra soil organic carbon along the coastline of northern Alaska. Geoderma, 154, 328-335, doi:10.1016/j.geoderma.2009.10.020.
Hung, C.-C., Xu, C., Santschi, P. H., Zhang, S., Schwehr, K.A., Quigg, A., Guo, L., Gong, G.-C., Pinckney, J., Long, R. and Wei, C.-L. 2010. Comparative evaluation of sediment-trap and 234Th-derived POC fluxes from the upper oligotrophic waters in the Gulf of Mexico and the subtropical northwestern Pacific Ocean. Marine Chemistry, 121, 132-144, doi:10.1016/j.marchem.2010.03.011.
Zhang, J.-Z., Guo, L. and C.R. Fischer. 2010. Abundance and Chemical Speciation of Phosphorus in Sediments of the Mackenzie Delta, Chukchi Sea and Bering Sea. Aquatic Geochemistry,16, 353-371, doi:10.1007/s10498-009-9081-4.
Diercks, A.R., R.C. Highsmith, V.L. Asper, D.J. Joung, Z. Zhou, L. Guo, A.M. Shiller, S.B. Joye, A.P. Teske, N. Guinasso, T. L. Wade & S.E. Lohrenz. 2010. Characterization of subsurface polycyclic aromatic hydrocarbon at the Deepwater Horizon site. Geophysical Research Letters, 37, L20602, doi:10.129/2010GL045046.
Guo, L., White, D.M., Xu, C. and Santschi, P.H. 2009. Chemical and isotopic composition of HMW-DOM from the Mississippi River plume. Marine Chemistry, 114, 63-71.
Xu, C.H., Guo, L., Dou, F. and Ping, C.-L. 2009. Potential DOC production from size fractionated Arctic tundra soils, Alaska. Cold Regions Science and Technology, 55, 141-150, doi:10.1016/j.coldregions.2008.08.001.
Xu, C.H., Guo, L., Ping, C. L., and White, D. M. 2009. Chemical and isotopic characterization of size-fractionated organic matter from cryoturbated soils, Northern Alaska. JGR-Biogeosciences, 114, G03002, doi:10.1029/2008JG000846.
Cai, Y., Guo, L., Douglas, T. and Whitledge, T. 2008. Seasonal variations in nutrient concentrations and speciation in the Chena River, Alaska. JGR-Biogeosciences, 113, G030035, doi:10.1029/2008JG000733.
Guéguen, C., Guo, L. Yamamoto-Kawai, M. and Tanaka, N. 2007. Colored dissolved organic matter dynamics across the shelf/basin interfaces in the western Arctic Ocean. J. Geophys. Res., 112(C05), C05038, doi10.1029/2006JC003584.
Guo, L., and Macdonald, R.W. 2006. Source and transport of terrigenous organic matter in the upper Yukon River: evidence from isotope (13C, 14C and 15N) composition of dissolved, colloidal and particulate phases.Global Biogeochemical Cycles, 20, GB2011, doi: 10.1029/2005GB002593.
Santschi, P.H., Murray, J.W., Baskaran, M.,Benitez-Nelson, C., Guo, L.D., Hung, C.-C., Lamborg, C., Moran, B., Passow, U., and Roy-Barman, M. 2006. Thorium speciation in seawater. Marine Chemistry, 100, 250-268.
Guo, L., Tanaka, T. Wang, D., Tanaka, N. and Murata, A. 2004. Distributions, speciation and stable isotope composition of organic matter in the southeastern Bering Sea. Marine Chemistry, 91: 211-226.
Hung, C.-C., Guo, L., Santschi, P. H. Alvarado-Quiroz, N. and Haye, J. 2003. Distributions of carbohydrate species in the Gulf of Mexico. Mar. Chem. 81(3/4): 119-135.
Chen, M., Dei, R.C.H., Wang, W.-X. and Guo, L. 2003. Marine diatom uptake of iron bound with natural colloids of different origins. Mar. Chem. 81(3/4): 177-189.
Guo, L., Tanaka, N., Schell, D. M. and Santschi, P.H. 2003. Nitrogen and carbon isotopic composition of high-molecular-weight dissolved organic matter in marine environments. Mar. Ecol. Prog. Ser. 252: 51-60.
Guo, L. Hung, C. C. Santschi, P. H. and I. D. Walsh. 2002. 234Th scavenging and its relationship to acid polysaccharide abundance in the Gulf of Mexico. Marine Chemistry, 78: 103-119.
Guo, L., Wen, L., Tang, D., and Santschi, P. H. 2000. Re-examination of cross flow ultrafiltration for sampling aquatic colloids: evidence from molecular probes. Mar. Chem., 69: 75-90.
Guo, L., Chen, M. and Guéguen, C. 2002. Control of Pa/Th ratio by particulate chemical composition in the ocean. Geophys. Res. Lett. 29(20), 1961, doi: 10.1029/2002GL015666.
Santschi, P. H., Roberts, K. A. and Guo, L. 2002. The organic nature of colloidal actinides transported in surface water environments. Environ. Sci. Technol. 36(17): 3711-3719.
Wang, D., Henrichs, S.M. and Guo, L. 2006. Distributions of nutrients, dissolved organic carbon and carbohydrates in the western Arctic Ocean. Continental Shelf Res., 26 (14), 1654-1667.
Guo, L.D., Ping, C.L., Macdonald, R.W. 2007. Mobilization pathways of organic carbon from permafrost to arctic rivers in a changing climate. Geophys. Res. Lett., 34(13), L13603, doi10.1029/2007GL030689.
Cooke, M.P., van Dongen, B. E., Talbot, H.M., Semiletov, I., Guo, L. and Gustafsson, Ã?. 2009. Bacteriohopanepolyol biomarker composition of organic matter exported to the Arctic Ocean by seven of the major Arctic rivers. Organic Geochemistry, 40(11): 1151-1159. doi:10.1016/j.orggeochem.2009.07.014.
Guo, L., Lehner. J.K., White, D.M. and Garland, D.S. 2003. Heterogeneity of natural organic matter from the Chena River, Alaska. Water Research, 37(5): 1015-1022.
Chen, M., Wang, W.-X. and Guo, L. 2004. Phase partitioning and solubility of iron in natural seawater controlled by dissolved organic matter. Global Biogeochemical Cycles, 18(4): GB4013, doi: 10.1029/2003GB002160.
Chen, M., Guo, L., Ma, Q., Qiu, Y.S., Zhang, R., Lv, E., and Huang, Y.P. 2006. Zonal patterns of δ13C, δ15N and 210Po in the North Pacific Ocean. Geophys. Res. Lett., 33(4), L04609, doi: 10.1029/2005GL025186.
McGuire, A.D., Anderson, L., Christensen, T.R., Dallimore, S., Guo, L.D., Hayes, D., Heimann, M., Macdonald, R. and Roulet, N. 2009. Sensitivity of the Carbon Cycle in the Arctic to Climate Change (Review). Ecological Monographs, 79(4), 523-555.
Cai, Y., Guo, L.D. and Douglas, T. 2008. Temporary variations in organic carbon species and fluxes from the Chena River, Alaska. Limnology and Oceanography, 53(4): 1408-1419.
Douglas, T.A., Fortier, D., Shur, Y.L., Kanevskiy, M.Z., Guo, L., Cai, Y. and Bray, M.T. 2011. Geomorphic and geochemical characteristics of thermokarst cave ice in the CRREL Permafrost Tunnel, Alaska. Permafrost and Periglacial Processes, 21(4), http://dx.doi.org/10.1002/ppp.709.
Cai, Y. and Guo, L. 2009. Abundance and variation of colloidal organic phosphorus in riverine, estuarine and coastal waters in the northern Gulf of Mexico. Limnology and Oceanography 54(4), 1393-1402.
Guo, L., Santschi, P. H. and Warnken, K. W. 2000. Trace metal composition of colloidal organic matter in marine environments. Mar. Chem., 70(4): 257-275.
Wang, W. and Guo, L. 2001. Production of colloidal organic carbon and trace metals by phytoplankton decomposition. Limnol. Oceanogr., 46(2): 278-286.
Zhou, Z. and Guo, L. 2012. Evolution of the optical properties of seawater influenced by the DWH oil spill in the Gulf of Mexico. Environmental Research Letters, 7(2), 025301, doi:10.1088/1748-9326/7/2/025301.
Guo, L.D., Warnken, K.W. and Santschi, P.H. 2007. Retention behavior of dissolved uranium during ultrafiltration, implications for colloidal U in surface waters. Marine Chemistry, 107(2), 156-166.
Guo, L. Semiletov, I, Gustafsson, O., Ingri, J. Andersson, P. Dudarev, O. White, D. 2004. Characterization of Siberian Arctic estuarine sediments: Implications for terrestrial organic carbon export. Global Biogeochemical Cycles, 18(1), GB1036, doi: 10.1029/2003GB002087.
Guo, L., Zhang, J.-Z., Guéguen, C. 2004. Speciation and fluxes of nutrients (N, P, Si) from the upper Yukon River. Global Biogeochemical Cycles, 18(1), GB1038, doi: 10.1029/2003GB2152.

Created: 2011-02-15 Last Updated: 2015-05-15 by Laodong GUO