Erik Christensen - Professor


Contact Information

Office Address:
EMS 562, E308
3200 North Cramer Street
Milwaukee, WI 53211
Phone: 414-229-4968
Fax: 414-229-6958
Email: erc@uwm.edu

Mailing Address:
P.O. Box 784
Department of Civil Engineering and Mechanics
University of Wisconsin-Milwaukee
Milwaukee, WI 53201

 Eric Christensen
Education

Ph.D. - Environmental Engineering, University of California, Irvine, 1977
M.S. - Electrical Engineering, Technical University of Denmark, 1967

Research Interests

Source apportionment and degradation of environmental pollutants, storm water, multiple toxicity models, radiometric dating of sediments, aquatic pollutants, membrane separation processes.

Selected Publications
  • Christensen, E.R. and S. Arora, 2007.  Source apportionment of PAHs in sediments using factor analysis by time records: Application to Lake Michigan, U.S.A. Water Res. 41, 168-176. 
  • Lu, J.H., P.A. Bzdusek, E.R. Christensen, and S. Arora, 2005.  Estimating sources of PAHs in sediments of the Sheboygan River, Wisconsin, by a chemical mass balance model.  J. Great Lakes Res. 31 (4), 456-465.
  • Bzdusek, P.A., E.R. Christensen, C.M. Lee, U. Pakdeesusuk, and D.L. Freedman, 2006.  PCB congeners and dechlorination in sediments of Lake Hartwell, South Carolina, determined from cores collected in 1987 and 1998.  Environ. Sci. Technol. 40 (1), 109-119.
  • Merino-Garcia, D., K.O. Kusk, and E.R. Christensen,  2003.  Joint toxicity of similarly and dissimilarly acting chemicals to Daphnia magna at different response levels.  Arch. Environ. Contam. Toxicol. 45 (3), 289-296.
  • Li, J., M.K. Mgonella, P.A. Bzdusek, and E.R. Christensen, 2005.  PCB congeners and dechlorination in sediments of Upper Sheboygan River, Wisconsin.  J. Great Lakes Res. 31 (2), 174-186.
  • Bzdusek, P.A., J.H. Lu, and E.R. Christensen,  2005.  Evidence of fine-grained sediment transport and deposition in Sheboygan River, Wisconsin, based on sediment core chemical tracer profiles.  Wat. Resour. Res 41 (4), Art No. W04016, April 27.
  • Chen, C.Y., S.L. Chen, and E.R. Christensen, 2005.  Individual and combined toxicity of nitriles and aldehydes to Raphidocelis subcapitata.  Environ. Toxicol. Chem. 24 (5), 1067 – 1073.
  • Christensen, E.R. and P.A. Bzdusek, 2005.  PAHs in sediments of the Black River and the Ashtabula River, Ohio: Source apportionment by factor analysis. Wat. Res. 39 (4), 511-524.
  • Imamoglu, I., K. Li, E.R. Christensen, and J.K. McMullin, 2004.  Sources and dechlorination of polychlorinated biphenyl congeners in the sediments of Fox River, Wisconsin.  Environ. Sci. Technol. 38 (9), 2574 – 2583.
  • Bzdusek, P.A., E.R. Christensen, A. Li, and Q.M. Zou, 2004.  Source apportionment of sediment PAHs in Lake Calumet, Chicago: Application of factor analysis with nonnegative constraints.  Environ. Sci. Technol. 38 (1), 97–103.
  • Imamoglu, I, K. Li, and E.R. Christensen, 2002. "Modeling PCB Congener Patterns and Dechlorination in Dated Sediments from Ashtabula River, Ohio, USA." Environmental Toxicology and Chemistry. In press.
  • Imamoglu, I. and E.R. Christensen, 2002. "PCB Sources, Transformations, and Contributions in Recent Fox River, Wisconsin, Sediments Determined from Receptor Modeling." Water Research 36 (14) 3449-3462.
  • Kralovec, A.C., E.R. Christensen, and R.P. Van Camp. 2002 "Fossil Fuel and Wood Combustion as Recorded by Carbon Particles in Lake Erie Sediments 1850-1998." Environ. Sci. Technol. 36 (7) 1405-1413.
  • Li, K., E.R. Christensen, R.P. Van Camp, and I. Imamoglu, 2001 "PAHs in Dated Sediments of Ashtabula River, Ohio, USA." Environ. Sci. Technol. 35 (14) 2896-2902.
  • Ab Razak, I.A. and E.R. Christensen, 2001 "Water Quality before and after Deep Tunnel Operation in Milwaukee, Wisconsin." Water Research 35 (11) 2683-2692.
  • Christensen, E.R., D.X. Chen, N. Nyholm, and K.O. Kusk, 2001 "Joint Action of Chemicals in Algal Toxicity Tests: Influence of Response Level and Dose-Response Regression Model." Environ. Toxicol. Chem. 20 (10) 2361-2369.
  • Su, M.-C., E.R. Christensen, J.F. Karls, S. Kosuru, and I. Imamoglu, 2000 "Apportionment of PAH Sources in Lower Fox River Sediments by a Chemical Mass Balance Model." Environ. Toxicol. Chem. 19 (6) 1481-1490.
  • Christensen, E.R., P. Rachdawong, J.F. Karls, and R.P. Van Camp, 1999 "PAHs in Sediments: Unmixing and CMB Modeling of Sources." ASCE Journal of Environmental Engineering. 125 (11) 1022-1032.
  • Karls, J.F. and E.R. Christensen, 1998. "Carbon Particles in Dated Sediments from Lake Michigan, Green Bay, and Tributaries." Environ. Sci. Technol. 32 (2) 225-231.
  • Rachdawong, P. and E. R. Christensen, 1997. "Determination of Sources of PCBs by a Principal Component Method with Nonnegative Constraints." Environ. Sci. Technol. 31 (9) 2686-2691.