Fate and Transport of Emerging Contaminants (Hormones and Pharmaceuticals) in the Watershed
Natural and synthetic hormones are widely used in the animal agriculture industry. Common assumption is that hormones do not pose a risk to downstream waters because they sorb strongly to soils and degrade rapidly under aerobic conditions. Nevertheless, measurable concentrations of many hormones have been detected in streams, which lead one to question this assumption. In this study, we couple laboratory experiments with field data and numerical modeling to understand how hormones from concentrated animal feeding operations are transported through the field-tile-ditch-stream network continuum, and why they persist in natural environments.
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Relevant Publications
Gall, H. E., Basu, N. B., Mashtare, M. L., C. Rao, P. S., & Lee, L. S. (2016). Assessing the impacts of anthropogenic and hydro-climatic drivers on estrogen legacies and trajectories. Advances in Water Resources, 87, 19–28. http://doi.org/10.1016/j.advwatres.2015.10.012
Gall, H. E., Basu, N. B., Mashtare, M. L., C. Rao, P. S., & Lee, L. S. (2016). Assessing the impacts of anthropogenic and hydro-climatic drivers on estrogen legacies and trajectories. Advances in Water Resources, 87, 19–28. http://doi.org/10.1016/j.advwatres.2015.10.012