I am a research scientist with a background in environmental chemistry, geochemistry, and soil science. I am especially interested in applying bench-scale experiments and molecular level characterizations to understand field-scale behavior and fate of environmental contaminants and compounds.
Zhange Feng
Li Li
Dr. Li’s research is focused on developing and applying computational models to assess how human-made chemical substances reside, travel, and change in the human socioeconomic system, the environment, and food webs, and how they enter our bodies and cause potential environmental and health concerns. These chemicals include notorious examples like flame retardants, plasticizers, pesticides, personal care products, and disinfectants, which are frequently detected in homes, food items, and tap water across the U.S. and other countries.
Lazaro Perez
My work seeks to identify and understand the coupling between physical heterogeneity and biochemical processes that control environmental biogeochemical reactions, energy, and mass transfer processes in the environment. We design and implement multiscale laboratory experiments visualization and numerical modeling.
My research is highly collaborative and multidisciplinary that provides domain expertise in scale biogeochemistry, reactive transport processes, multiphase flow systems, lab-to-field-scale hydrogeology, and computational geochemistry.
Douglas Sims
Douglas Sims is Dean, School of Science, Engineering, and Mathematics at the College of Southern Nevada. He leads a school of more than 280 staff (FT and PT) serving 18000+ students. His focus is in sediments, geochemistry, environmental chemistry, and paleohydrology in the Southern Great Basin and Mojave Desert. Current projects are paleohydrology of desert playas, trace metals scavenging by rock varnish, surface water quality, and sediment migration and transport of trace metals in agricultural soils.
Erica Marti
Dr. Erica Marti’s main research interests are in water and wastewater treatment, especially in the area of transforming wastewater for a beneficial reuse (drinking water, irrigation water, etc.). Past work has included understanding the formation of unregulated disinfection byproducts (DBPs) and investigating different methods to prevent their formation. DBPs are created when water is disinfected with chemical oxidants like different forms of chlorine and ozone. We use the chemicals to inactivate pathogens (bacteria, viruses, etc.) but the chemicals can react with other dissolved organics and inorganics to create unwanted byproducts, some of which are toxic. Therefore, water treatment professionals must work carefully to provide the right amount of oxidant for disinfection while minimizing DBPs.
Future research topics include remediation of polluted groundwater, adsorption of heavy metals from wastewater using biochar made from agricultural waste products, uptake of DBPs in plants grown using treated wastewater, and optimizing toxicity assays for DBPs.
Dr. Marti also conducts research in the area of STEM education and has led several Teacher Professional Development programs for integrated STEM lessons and engineering design.
Spencer Steinberg
Spencer Steinberg, Ph.D., is a Professor of Chemistry at the University of Nevada Las Vegas, where he teaches general, analytical and environmental chemistry courses at both undergraduate and graduate levels. Dr. Steinberg has over thirty years of experience in basic and applied research related to the environmental analytical chemistry of the atmosphere, soil and water. His research focuses on quantifying trace organic and inorganic compounds in complex matrices.
Dr. Steinberg’s recent research projects encompass a range of topics which include method development for determination of trace volatile organic compounds in soil and water, detection of silver nanoparticles in water, photochemical formation of oxidants in heterogeneous systems, characterization of natural organic matter in soil and water and the characterization of municipal solid waste. He has also developed ongoing collaborations with various colleges in material science and biology. His research has been funded by the NASA, the US EPA and The US-DOE.
Dr. Steinberg holds a Ph.D. in Marine Chemistry from the University of California, San Diego Scripps Institution of Oceanography.