Environmental Engineering addresses the interaction of humans with their environment and the planning, design, and control of systems for environmental quality management. This discipline covers such areas as air and noise pollution, solid waste, potable water, and wastewater. Air: Air pollution control, atmospheric dispersion modeling and air quality modeling. Current research includes: control of air toxins and other pollutants from hazardous waste incinerators, and modeling the carbon monoxide concentrations near busy traffic intersections. Noise: Outdoor noise propagation and control. Ongoing research includes Development of enforceable ordinances, modeling of transportation noise sources, the design of mitigation, and atmospheric effects on outdoor noise propagation. Potable Water: Physical and chemical unit operations and water treatment plant design emphasizing compliance with amendments to the Safe Drinking Water Act. Research includes design and modeling of conventional and advanced technologies for the control of DBP precursors, corrosion, biological pathogen, SOCs and other contaminants emphasizing cost and performance. Faculty, staff, and students are currently involved in regional, national and international research projects involving drinking water treatment. Solid Waste: Solid and hazardous waste including municipal solid waste management and facility design, hazardous waste regulation and management, subsurface contaminant transport and hazardous waste incineration. Research activities include solid waste composting, landfill gas emission modeling and measurement, landfill leachate treatment, hazardous waste incineration, and beneficial reuse of landfill gas. Wastewater: Unit operations and processes for the management of municipal and industrial wastewater. Biological processes for domestic and degradable industrial wastewater. Physical and chemical methods to eliminate toxicity associated with certain industrial sources. Waste management strategies through water conservation, by-product recovery, material substitution, recycling, reuse, and other product modifications.