FACULTYMarc Deshusses, Professor - Environmental biotechnology, biofilms, biofiltration, gas-phase sensors based on functionalized nanomaterialsRichard T. Di Giulio, Professor - Environmental toxicology, environmental health, and freshwater and estuarine pollution. Lee Ferguson, Associate Professor - Emerging contaminants, nanotechnology, high-performance mass spectrometry techniques to problems in environmental toxicology and chemistry. Claudia K. Gunsch, Assistant Professor - Identification of gene expression variations linked to vapor-phase biofilter performance, Development of biosensors capable of pathogen and contaminant detection in water and air, Use of DNA chips to study the microbial ecology of groundwater and air treatment systems, Isolation and identification of novel genes in environmentally relevant microorganisms, Development of methods to control the release of genetically engineered microorganisms in natural and controlled environments.David E. Hinton, Professor -Environmental toxicology, mechanistic and integrative understanding of the manner in which environmental contaminants exert their effects.  Heileen Hsu-Kim, Assistant Professor - Environmental chemistry; biogeochemical cycling of pollutant metals; aquatic geochemistry; water-particle surface processes; transformation of metals in engineered ecosystems Andrey Khlystov, Assistant Professor - Effect of ambient aerosol on the global climate and how aerosol hygroscopic growth affects the magnitude of climate forcing; exploring the relationship between particulate matter and adverse health effects; and development of new automatic measurement techniques to study the properties and transformations of ambient aerosol.Joel N. Meyer, Assistant Professor - Environmental toxicology, environmental and genetic influences on organism health, DNA integrity, oxidative stress, and processes of adaptation to pollution.J. Jeffrey Peirce, Associate Professor - Environmental engineering, hazardous waste engineering, physical, chemical, and biological aspects of particle-fluid interactions, models of trace gas emissions from waste- amended and chemically-applied soils.Kenneth H. Reckhow, Professor - Water quality assessment and management, water quality modeling, risk assessment, decision analysis.  David Schaad, Associate Professor of the Practice and Associate Chair - Water and wastewater treatment design, stormwater retention/detention and treatment design, hazardous waste remediation, urban hydrology, constructed wetland and stream restoration design, ecological stabilization, sustainable engineering in land development, water resources, water and wastewater treatment. Heather Stapleton, Assistant Professor - Fate and biotransformation of organic contaminants in aquatic systems, persistent organic pollutants (POPs), such as polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs).Avner Vengosh, Associate Professor - Environmental and aqueous geochemistry, isotope hydrology, water quality, and salinization of water resources. Mark R. Wiesner, James L. Meriam Professor - Environmental nanotechnology, membrane science, water treatment, water reuse, desalination, colloidal and interfacial processes, and environmental systems analysis.   ADJUNCT FACULTYJean-Yves Bottero, Adjunct Professor -Physical chemistry of organic, inorganic, and heterogeneous contaminants; physicochemical properties of surfaces; environmental nanotechnology; solid waste disposal; water and wastewater treatment. Karl G. Linden, Adjunct Associate Professor - Applications of emerging ultraviolet technologies for disinfection of water and wastewater, control of disinfection by-products, and oxidation of organic contaminants.Jerome Rose, Adjunct Associate Professor - Arsenic removal, ceramic membranes, advanced spectroscopy (EXAFS), Relation between nanostructure of materials and their reactivity and toxicity. Characterization of the structure of ultra-small (colloids and molecular clusters), and/or amorphous and highly divided materials down to the molecular scale.Daniel Vallero, Adjunct Associate Professor - Risk Assessment, transport and transformation of organic compounds in environmental media, especially soil and the troposphere.