Most of my papers focus on the environmental fate of endocrine disrupting steroids, detection of bioactive transformation products, mass spectrometry of organic contaminants at trace levels, and the application of high resolution mass spectrometry to urban stormwater and related receiving waters.   PDFs of these papers can be found below.

  1. Salls, K.A., Won, D., Kolodziej, E.P., Childress, A.E., Hiibel, S.R. “Transport of Metals and Semi-Volatile Contaminants In Direct Contact Membrane Distillation.” 2017. In Press. Desalination
  2. Pflug, N.C., Hankard, M.K., Berg, S.M., O’Connor, M., Gloer, J.C., Kolodziej, E.P., Cwiertny, D.M., Wammer, K.H. 2017. “Environmental Photochemistry of Dienogest: Phototransformation to Estrogenic Products and Increased Environmental Persistence via Reversible Photohydration. In press.   Environ. Sci. Processes Impacts.
  3. Du, B., Lofton, J.M., Peter, K.T., Gipe, A.D., James, C.A., McIntyre, J.K., Scholz, N.L., Baker, J.E., Kolodziej, E.P. “Development of Suspect and Non-Target Screening Methods for Detection of Organic Contaminants in Highway Runoff and Fish Tissue with High-Resolution Time-of-Flight Mass Spectrometry.” 2017. Environ. Sci. Processes Impacts. 19, 1185-1196. DOI 10.1039/C7EM00243B (PDF)
  4. Kolodziej E.P., Choi, K., Marfil-Vega, R., Brooks, B.W. “The Necessity of Bioanalytical Tools for Advancing Water and Sediment Quality Assessment.” 2017. Environ. Sci. Processes Impacts. 19, 1113-1116.  DOI:10.1039/C7EM90032E   (Editorial content, non-peer reviewed)
  5. Pflug, N.C., Kupsco, A., Kolodziej, E.P., Schlenk, D., Teesch, L.M., Gloer, J.B., Cwiertny, D.M. “Formation of Bioactive Transformation Products During Glucocorticoid Chlorination.” 2017. Environmental Science: Water Research and Technology. 3, 450-461. DOI 10.1039/C7EW00033B  (PDF)
  6. Wammer, K.H., Anderson, K.C., Erickson, P.R., Kliegman, S., Moffat, M.E., Heitzman, J.A., McNeill, K., Martinovic-Weigelt, D., Cwiertny, D.M., Kolodziej, E.P. 2016. “Environmental Photochemistry of Altrenogest: Photoisomerization Followed by Reversible Photohydration.” Environ. Sci. Technol. 50(14). 7480-7488. DOI 10.1021/acs.est.6b02608  (PDF)
  7. Baltrusiatis, J., Patterson, E., O’Connor, M., Shen, Q., Kolodziej E.P., Cwiertny, D.M. 2016. “Reversible Photohydration of Trenbolone Acetate Metabolites:  Mechanistic Understanding of Product-To-Parent Reversion through Complementary Experimental and Theoretical Approaches.” Environ. Sci. Technol. 50(13). 6753-6761. DOI 10.1021/acs.est.5b03905  (PDF)
  8. Ward, A.S., Cwiertny, D.M., Kolodziej, E.P., Brehm, C.C. 2015. “Stream-Hyporheic Spiraling Increases Environmental Persistence of Trenbolone Metabolites.” Nature Communications, 6, Article #7067, DOI 10.1038/ncomms8067  (PDF)
  9. Cole, E.A. McBride, S., Kimbrough K.C., Marchand, E.A., Cwiertny, D.M., Kolodziej, E.P. 2015. “Rates and Product Identification for Trenbolone Acetate Metabolite Biotransformation in Aerobic Conditions.” Environ. Toxicol. Chem. 34(7), 1472-1484, DOI: 10.1002/etc.2962  (PDF)
  10. Qu, S., Kolodziej, E.P., Cwiertny, D.M. 2014. “Sorption and Mineral Promoted Transformation of Synthetic Hormone Growth Promoters in Soil Systems” J. Agricul. Food Chem. 62(51), 12277-12286. DOI 10.1021/jf5035527  (PDF)
  11. Jones, G.D., Benchetler, P.V., Tate, K.W., Kolodziej E.P. 2014. “Trenbolone Acetate Metabolite Transport in Rangelands and Irrigated Pastures: Observations and Conceptual Approaches for Agro-Ecosystems.” Environ. Sci. Technol. 48(21) 12569-12576.   DOI: 10.1021/es503406h  (PDF)
  12. Cwiertny, D.M. Schlenk, D., Snyder, S.A., Kolodziej E.P. 2014. “Environmental Designer Drugs: When Transformation Does Not Eliminate Risk.” Environ. Sci. Technol. 48(20) 11737-11745. DOI: 10.1021/es503425w   (PDF(Invited (EPK) feature article (cover article) for Environ. Sci. Technol.  Ranked #6, Most Read Articles of 2014; First runner up, Best Feature Article of 2014)
  13. Jones, G.D., Benchetler, P.V., Tate, K.W., Kolodziej E.P. 2014. “Surface and Subsurface Attenuation of Trenbolone Acetate Metabolites and Manure-derived Constituents in Irrigation Runoff on Agro-Ecosystems” Environ. Sci. Processes Impacts. 16, 2507-2516. DOI: 10.1039/c4em00385c  (PDF)
  14. Jones, G.D., Benchetler, P.V., Tate, K.W., Kolodziej E.P. 2014. “Mass Balance Approaches to Characterizing the Leaching Potential of Trenbolone Acetate Metabolites in Agro-Ecosystems.” Environ. Sci. Technol. 48(7) 3715-3723. DOI 10.1021/es405701f  (PDFSupporting Information)
  15. Cavallin, J.E., Durhan, E., Evans, N., Foreman, W.T., Jensen, K.M., Kahl, M.D., Kolodziej, E.P., Kolpin, D., LaLone, C.A., Makynen, E.A., Seidl, S.M., Thomas, L.M.,Villeneuve, D.L., Weberg, M.A., Wilson, V., Ankley, G.A. 2014. “Integrated Assessment of Runoff from Animal Feeding Operations: Analytical Chemistry, In Vitro Bioassays, and In Vivo Fish Exposures.” Environ. Toxicol. Chem. 33(8) 1849-1857. DOI 10.1002/etc.2627  (PDF)
  16. Qu, S., Kolodziej, E.P., Long, S.A., Gloer, J.B., Patterson, E.V., Baltrusiatis, J., Jones, G.D., Benchetler, P.V., Cole, E.A., Kimbrough, K.A., Tarnoff, M.D., Cwiertny, D.M. 2013. “Product-to-Parent Reversion of Trenbolone: Unrecognized Risks for Endocrine Disruption.” Science.  342(6156), 347-351.  DOI 10.1126/science.1243192 (PDF, Supporting information)    (Co-corresponding author (With D.M. Cwiertny) and Project Principal Investigator)
  17. Kolodziej, E.P., Qu, S., Forsgren, K., Long, S.A., Gloer, J.B., Jones, G.D., Schlenk, D., Blatrusiatis, J., Cwiertny, D.M. 2013. “Identification and Environmental Implications of Photo-Transformation Products of Trenbolone Acetate Metablolites.” Environ. Sci. Technol. 47(10), 5031-5041. (PDFSupporting Information)
  18. Qu, S., Kolodziej, E.P., Cwiertny, D.M. 2012. “Phototransformation Rates and Mechanisms for Synthetic Hormone Growth promoters Used in Animal Agriculture.” Environ. Sci. Technol. 46(7), 3803-3810. (PDF)
  19. Webster, J.P., Kover, S.C., Bryson, R.J., Harter, T., Mansell, D.S., Sedlak, D.L., Kolodziej, E.P. 2012. “Occurrence of Trenbolone Acetate Metabolites in Simulated Confined Animal Feeding Operation (CAFO) Runoff.” Environ. Sci. Technol. 46(7), 3803-3810. (PDF)
  20. Parker, J.A., Webster, J.P., Kover, S.C., Kolodziej, E.P. 2012. “Analysis of Trenbolone Acetate Metabolites and Melengestrol in Environmental Matrices Using Gas Chromatography-Tandem Mass Spectrometry.” Talanta. 99, 238-246. (PDF)
  21. Mansell, D.S., Bryson, R.J., Harter, T., Webster, J.P., Kolodziej, E.P., Sedlak, D.L. 2011. “Fate of Endogenous Steroid Hormones in Steer Feedlots under Simulated Rainfall-Induced Runoff.” Environ. Sci. Technol. 45(20), 8811-8818. (PDF)
  22. Lavado, R., Loyo-Rosales, J.E., Floyd, E., Kolodziej, E.P., Snyder, S.A., Sedlak, D.L., Schlenk, D. 2009. “Site-Specific Profiles of Estrogenic Activity in Agricultural Areas of California’s Inland Waters.” Environ. Sci. Technol. 43(24), 9110-9116. (PDF)
  23. Kolodziej, E.P., and Sedlak D.L. 2007. “Rangeland Grazing as a Source of Steroid Hormones to Surface Waters.” Environ. Sci. Technol. 41(10), 3514-3520. (PDF)
  24. Fono, L.J., Kolodziej, E.P., Sedlak, D.L. 2006. “Attenuation of Wastewater-Derived Contaminants in a Wastewater-Dominated River.” Environ. Sci. Technol., 40(23), 7257-7263. (PDF)
  25. Schlenk, D., Sapozhnikova, Y., Irwin, M.A., Xie, L., Hwang, W., Reddy, S., Brownawell, B.J., Armstrong, J., Kelly, M., Montagne, D.E., Kolodziej, E.P., Sedlak, D.L., and Snyder, S. 2005. “In Vivo Bioassay-guided Fractionation of Marine Sediment Extracts from the Southern California Bight, USA, for Estrogenic Activity.” Environ. Toxicol. Chem., 24(11), 2820-2826. (PDF)
  26. Kolodziej E.P., Harter T.H., and Sedlak D.L. 2004. “Dairy Wastewater, Aquaculture, and Spawning Fish as Sources of Steroid Hormones in the Aquatic Environment.” Environ. Sci. Technol. 38(23), 6377-6384. (PDF)
  27. Sedlak D.L., Pinkston K.L., Gray J.L. and Kolodziej E.P. 2003. “Approaches for Quantifying the Attenuation of Wastewater-Derived Contaminants in the Aquatic Environment.” Chimia. 57(9), 567-569.
  28. Kolodziej E.P., Gray J.L., and Sedlak D.L. 2003. “Quantification of Steroid Hormones with Pheromonal Properties in Municipal Wastewater Effluent.” Environ. Toxicol. Chem., 22(11), 2622-2629. (PDF)