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Zepp, R., Mike Cyterski, K. Wong, O. Georgacopoulos, Brad Acrey, G. Whelan, R. Parmar, AND M. Molina. Biological Weighting Functions for Evaluating the Role of Sunlight-Induced Inactivation of Coliphages at Selected Beaches and Nearby Tributaries. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, 52(22):13068-13076, (2018). https://doi.org/10.1021/acs.est.8b02191

Whelan, G., K. Kim, R. Parmar, Gerry Laniak, K. Wolfe, M. Galvin, M. Molina, Y. Pachepsky, P. Duda, R. Zepp, L. Prieto, J. Kinzelman, G. Kleinheinz, AND M. Bouchard. Capturing microbial sources distributed in a mixed-use watershed within an integrated environmental modeling workflow. ENVIRONMENTAL MODELLING AND SOFTWARE. Elsevier Science Ltd, New York, NY, 99:126-146, (2018).

Avant, B., Chris Knightes, R. Zepp, D. Bouchard, X. Chang, H. Hsieh, Matt Henderson, J. Spear, Brad Acrey, AND Y. Han. Environmental Fate and Transport of Carbon-based Nanomaterials in Aquatic Ecosystems. iEMSs 2018, Fort Collins, CO, June 24 - 28, 2018.

Bais, A., R. Lucas, J. Bornman, C. Williamson, B. Sulzberger, A. Austin, S. Wilson, A. Andrady, G. Bernhard, R. McKenzie, P. Aucamp, S. Madronich, R. Neale, S. Yazar, A. Young, F. de Gruijl, M. Norval, Y. Takizawa, P. Barnes, T. Robson, S. Robinson, C. Ballare, S. Flint, P. Neale, S. Hylander, K. Rose, S. Wangberg, D. Hader, R. Worrest, R. Zepp, N. Paul, R. Cory, K. Solomon, J. Lonstreth, K. Pandey, H. Redhwi, A. Torikai, AND A. Heikkila. Environmental effects of ozone depletion, UV radiation and interactions with climate change: UNEP Environmental Effects Assessment Panel, update 2017. PHOTOCHEMICAL AND PHOTOBIOLOGICAL SCIENCES. Royal Society of Chemistry, Cambridge, Uk, 17(2):127-179, (2018).

Parmar, R. AND R. Zepp. GCSolar.NET User's Manual. U.S. Environmental Protection Agency, Office of Research and Development, National Center for Environmental Assessment, Washington, DC, EPA/600/B-18/010, 2018.

Knightes, Chris, B. Avant, Y. Han, R. Zepp, D. Bouchard, Brad Acrey, T. Wool, AND R. Ambrose. Simulating Toxicant Concentrations in Surface Waters and Sediments: Advances in the Water Quality Analysis Simulation Program (WASP8). iEMSs 2018, Fort Collins, CO, June 24 - 28, 2018.

Han, Y., Chris Knightes, D. Bouchard, R. Zepp, X. Chang, H. Hsieh, Matt Henderson, J. Spear, Brad Acrey, AND B. Avant. Simulating the Fate and Transport of Graphene Oxide Nanoparticles and Their Reaction Products in Surface Waters Using the Water Quality Analysis Simulation Program 8 (WASP8). 2018 ACS National Meeting & Expo, Boston, MA, August 19 - 23, 2018.

Han, Y., Chris Knightes, R. Zepp, D. Bouchard, X. Chang, H. Hsieh, B. Avant, Matt Henderson, J. Spear, AND Brad Acrey. Simulating the Fate and Transport of Nanoparticles and Their Reaction Products in Surface Waters Using the Water Quality Analysis Simulation Program 8 (WASP8). 2018 iEMSs Conference, Fort Collins, CO, June 24 - 28, 2018.

Nelson, K., A. Boehm, R. Davies-Colley, M. Dodd, T. Kohn, K. Linden, Y. Liu, P. Maraccini, K. McNeill, W. Mitch, T. Nguyen, K. Parker, R. Rodriguez, L. Sassoubre, A. Silverman, K. Wigginton, AND R. Zepp. Sunlight-mediated inactivation of health-relevant microorganisms in water: a review of mechanisms and modeling approaches. Environmental Science: Processes & Impacts. RSC Publishing, Cambridge, Uk, 20(8):1089-1122, (2018). https://doi.org/10.1039/C8EM00047F

Kim, K., G. Whelan, M. Molina, R. Parmar, K. Wolfe, M. Galvin, P. Duda, R. Zepp, J. Kinzelman, G. Kleinheinz, AND M. Borchardt. Using Integrated Environmental Modeling to Assess Sources of Microbial Contamination in Mixed-Use Watersheds. JOURNAL OF ENVIRONMENTAL QUALITY. American Society of Agronomy, MADISON, WI, 47(5):1103-1114, (2018). https://doi.org/10.2134/jeq2018.02.0071

Williamson, C., S. Madronich, A. Lal, R. Zepp, R. Lucas, E. Overholt, K. Rose, S. Schladow, AND J. Lee-Taylor. Altmetric: 165More detailArticle | OPENClimate change-induced increases in precipitation are reducing the potential for solar ultraviolet radiation to inactivate pathogens in surface waters. Scientific Reports. Nature Publishing Group, London, Uk, 7:13033, (2017).

Zepp, R., W. Wohlleben, E. Sahle-Demessie, C. Kingston, D. Bouchard, B. Acrey, A. Commodore, O. Okungbowa, AND E. Walton. Approaches to evaluating weathering effects on release of engineered nanomaterials from solid matrices. ACS Fall 2017 National Meeting, Washington, DC, August 20 - 24, 2017.

Andrady, A., P. Aucamp, A. Austin, A. Bias, C. Ballare, P. Barnes, G. Bernhard, L. Bjorn, J. Bornman, N. Congdon, R. Cory, S. Flint, F. de Gruijl, D. Hader, A. Heikkila, S. Hylander, J. Longstreth, R. Lucas, S. Madronich, R. McKenzie, P. Neale, R. Neale, M. Norval, K. Padney, N. Paul, M. Rautio, H. Redhwi, S. Robinson, K. Rose, K. Solomon, B. Sulzberger, S. Wangberg, C. Williamson, S. Wilson, R. Worrest, A. Young, AND R. Zepp. Environmental effects of ozone depletion and its interactions with climate change: Progress report, 2016. PHOTOCHEMICAL AND PHOTOBIOLOGICAL SCIENCES. Royal Society of Chemistry, Cambridge, Uk, 16:107-145, (2017). https://doi.org/10.1039/C7PP90001E

Georgacopoulous, O., B. Acrey, M. Molina, AND R. Zepp. Inactivation Rates of Coliphages Isolated from Waste Water Treatment Plant Effluents in Georgia. 2017 Georgia Water Resources Conference, Athens, GA, April 19 - 20, 2017.

Avant, B., Chris Knightes, D. Bouchard, X. Chang, Matt Henderson, AND R. Zepp. Modeling Engineered Nanomaterials (ENMs) Fate and Transport in Aquatic Ecosystems. Georgia Water Resources Conference, Athens, GA, April 19 - 20, 2017.

Han, Y., Chris Knightes, D. Bouchard, R. Zepp, H. Hsieh, X. Chang, AND J. Spear. Modeling the Environmental Fate of Graphene Oxide and Its Phototransformation Products in Brier Creek Watershed Using the Water Quality Analysis Simulation Program 8 (WASP8). 2017 AGU Fall Meeting, New Orleans, LA, December 11 - 15, 2017.

Wohlleben, W., C. Kingston, J. Carter, E. Sahle-Demessie, S. Vazquez-Campos, B. Acrey, C. Chen, E. Walton, H. Egenolf, P. Muller, AND R. Zepp. NanoRelease: Pilot interlaboratory comparison of a weathering protocol applied to resilient and labile polymers with and without embedded carbon nanotubes. CARBON. Pergamon Press Ltd., New York, NY, 113:346-360, (2017). https://doi.org/10.1016/j.carbon.2016.11.011

Whelan, G., K. Kim, K. Wolfe, R. Parmar, M. Galvin, M. Molina, AND R. Zepp. Quantitative Microbial Risk Assessment Tutorial - Navigate the SDMPB and Identify an 8-digit HUC of Interest - Updated 2017. U.S. EPA Office of Research and Development, Washington, DC, EPA/600/B-15/273, 2017.

Whelan, G., K. Wolfe, R. Parmar, M. Galvin, M. Molina, R. Zepp, K. Kim, AND P. Duda. Quantitative Microbial Risk Assessment Tutorial - Primer. U.S. EPA Office of Research and Development, Washington, DC, EPA/600/B-17/323, 2017.

Kim, K., G. Whelan, K. Wolfe, R. Parmar, M. Galvin, M. Molina, AND R. Zepp. Quantitative Microbial Risk Assessment Tutorial: HSPF Setup, Application, and Calibration of Flows and Microbial Fate and Transport on an Example Watershed. U.S. EPA Office of Research and Development, Washington, DC, EPA/600/B-17/429, 2017.

Knightes, Chris, D. Bouchard, R. Zepp, Matt Henderson, Y. Han, H. Hsieh, Brad Acrey, AND J. Spear. Simulating Exposure Concentrations of Engineered Nanomaterials in Surface Water Systems: WASP8. 2017 AGU Fall Meeting, New Orleans, LA, December 11 - 15, 2017.

Wolfe, K., R. Parmar, G. Whelan, Gerry Laniak, M. Galvin, K. Kim, M. Molina, R. Zepp, P. Duda, AND D. Keiser. A Workflow to Model Microbial Loadings in Watersheds. iEMSs 8th International Congress on Environmental Modelling and Software, Toulouse, FRANCE, July 10 - 14, 2016.

Wolfe, K., R. Parmar, G. Whelan, Gerry Laniak, M. Galvin, K. Kim, M. Molina, R. Zepp, P. Duda, AND D. Keiser. A Workflow to Model Microbial Loadings in Watersheds (proceedings). In Proceedings, 8th International Congress on Environmental Modelling and Software, Toulouse, FRANCE, July 10 - 14, 2016. International Environmental Modelling and Software Society, Manno, Switzerland, 4, (2016).

Andrady, A., P. Aucamp, A. Austin, A. Bias, C. Ballare, P. Barnes, G. Bernhard, L. Bjorn, J. Bornman, D. Erickson, F. de Gruijl, D. Hader, M. Ilyas, J. Longstreth, R. Lucas, S. Madronich, R. McKenzie, R. Neale, M. Norval, K. Pandey, N. Paul, H. Redhwi, S. Robinson, K. Rose, M. Shao, R. Sinha, K. Solomon, B. Sulzberger, Y. Takizawa, A. Torikai, K. Tourpali, C. Williamson, S. Wilson, S. Wangberg, R. Worrest, A. Young, AND R. Zepp. Environmental effects of ozone depletion and its interactions with climate change: progress report, 2015. PHOTOCHEMICAL AND PHOTOBIOLOGICAL SCIENCES. Royal Society of Chemistry, Cambridge, Uk, 15(2):141-174, (2016).

Zepp, R., G. Whelan, M. Molina, Mike Cyterski, K. Wong, B. Acrey, AND A. Commodore. Impacts of Tributaries on Optical Properties and Singlet Oxygen Concentrations in the Great Lakes. 251st American Chemical Society National Meeting & Exposition, San Diego, CA, March 13 - 17, 2016.