Pesticide Fate Research Group

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Research Team

Michelle Hladik in the Lab Michelle Hladik (mhladik@usgs.gov) is an environmental organic chemist who has been with the USGS since 2005. She has a B.A. in Chemistry from Vassar College (1999) and a Ph.D. in environmental engineering from Johns Hopkins University (2005). She leads research projects that are nationwide in scope as well as California-based projects; additionally, she oversees the laboratory. Her research focuses on the fate and transport of contaminants, mainly current-use pesticides, in aqueous systems. She develops new methods to measure pesticides and their degradates in water, sediment and biota. She is also interested in the fate of contaminants and generation of new by-products during water treatment. Full bio is available online.
James Orlando cruises in a boat James Orlando (jorlando@usgs.gov) has been working as a hydrologist with the USGS Pesticide Fate Research Group since 1998. He received his M.S. in Geology from California State University: Sacramento in 2006. Jim is the GIS and field sampling specialist for the group. His research focuses on examining spatial and temporal trends of pesticide applications, and the concentrations of pesticides and other contaminants found in surface waters. Jim's research interests include using GIS to display, analyze and model environmental and anthropogenic variables in an effort to better understand their impacts on sensitive ecosystems.
Corey Sanders in the Lab Corey Sanders (csanders@usgs.gov) began working with the USGS in 2010 as an undergraduate at California State University Sacramento. He graduated in spring of 2012 with a B.S. degree in Chemistry and a minor in math. He is responsible for working with new tissue methods, as well as processing water and sediment samples. As the database administrator, he maintains the research groups sample tracking database, and is responsible for working with different states and agencies to upload data to NWIS and other online databases.
Matt De Parsia collecting water sampes Matt De Parsia (mdeparsia@usgs.gov) is a student trainee who began working with the Pesticide Fate Research Group in 2014. He graduated from California State University Sacramento with a B.S. in geology in 2011 and is currently pursuing a certificate in GIS at American River College. Matt leads field sampling efforts for the Delta Regional Monitoring Program and works with James Orlando to study pesticide use using GIS. Matt also performs CHN analysis on sediment samples and assists in preparing samples for pesticide analysis.
USGS Soil Scientist, Emily Woodward Michael Gross (msgross@usgs.gov) began his postdoctoral fellowship as an analytical research chemist with the USGS in June, 2016. He earned a B.S. in Chemistry from Allegheny College (2010) and a Ph.D. in Chemistry from the University at Buffalo (2016). His research focuses on the fate of anthropogenic contaminants. Currently, Mike is developing sample preparation and instrumental methods for the analysis of pesticides in tissues and plasma. Initially, these methods will be applied to laboratory studies on the absorption, distribution, metabolism, and elimination of seed treatment pesticides and anticoagulant rodenticides in non-target organisms. Ultimately, these bioanalytical methods will be applied towards field studies.

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