Lance Yonkos

Photo of Lance Yonkos Associate Professor
University of Maryland College Park
Animal Science Bldg # 142, Rm 1431
College Park, Maryland 20742
Phone: 301-405-7871

Research Disciplines: Research Interests:

aquatic toxicology, legacy contaminants, endocrine disruption, microplastics environmental health,

View Lance's CV

Biographical Sketch

I am an Associate Professor in the Department of Environmental Science and Technology (ENST) within the College of Agriculture and Natural Resources (AGNR) at the University of Maryland College Park (UMCP). My professional career, beginning ~1990, has involved integrating fundamental and applied research to better understand and mitigate the sources, fate, and ecological effects of contaminants in the environment. Since starting with ENST (beginning 2008), I also incorporate teaching and mentoring of graduate and undergraduate students as essential activities for transferring core ecotoxicological ideas to succeeding generations. I teach introductory to advanced courses in Environmental Toxicology and Ecosystem Health, advise MS and PhD students, mentor undergraduate researchers (individually and within groups), and perform research within and beyond the Chesapeake Bay Watershed on a variety of contaminant issues including (but not limited to): endocrine disruptors, metals (Hg, Cd, As, etc.), organics (PCBs, PAHs, TCDDs, OC pesticides), and microplastics. I collaborate with state and federal agencies, non-profits, commercial entities, and diverse academic colleagues from four continents.


Ph.D. 2005 University of Maryland (College Park, MD)
Marine-Estuarine Environmental Sciences Program
Advisor: David A. Wright
Dissertation: Poultry Litter-Associated Endocrine Disruption: Laboratory and Field Investigations

M.S. 1999 University of Maryland (College Park, MD)
Marine-Estuarine Environmental Sciences Program
Advisor: David A. Wright
Thesis: Histological and Hematological Effects of Chlorine Dioxide and Chlorite on the Fathead Minnow, Pimephales promelas

B.S. 1986 Washington and Lee University (Lexington, VA)
Natural Science and Mathematics

Ongoing and Recent CESU Projects

Other Research

Application of Fundulus heteroclitus Health Indicators to Establish Baseline Environmental Quality of the Anacostia River

Fecundity and Oocyte Health of Mummichog Fundulus heteroclitus in the Lower Passaic River NJ

Characterization of ecotoxicological baselines in fish and zooplankton from the surface to the seafloor in the eastern Clarion-Clipperton Zone

Abundance and Variety of Microplastics in Surface Waters, Sediments, and Oysters: Relationship to Point-Sources and Land Use Practices

Investigation into Molecular Effects of Contaminants on Wildlife

Field Validation of Non-Lethal Laparoscopic Technique for Detection of Intersex in Regional Bass Populations

Toxicity Testing of Leachate from Maryland Coal Ash Management Facilities

The Environmental Concerns of Arsenic Additives in Poultry Litter: Literature Review


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