Integrated Air Pollution Control System (IAPCS) Cost Model: The IAPCS model estimates costs for implementing various air pollution control technologies for coal-fired power plants. The IAPCS model is intended for use by pollution control regulators, architecture and engineering companies, utility companies, public utility commissions, and legislators.
Economics and Performance Modeling: These economic and performance evaluation models estimate costs for air pollution prevention and control strategies. The models are intended for use by decision makers looking for objective, authoritative information on the cost-effectiveness of environmental technologies and risk management methods.
Mobile Source Ozone Precursor Emissions Characterization and Modeling
Mobile Emissions Assessment System for Urban and Regional Evaluation (MEASURE): This model characterizes mobile source emissions. This model estimates emissions for specific vehicle and engine operating modes (e.g., engine starts, acceleration, deceleration, and idling) so that more accurate information about actual on-road emissions can be obtained.
Highway Vehicle Particulate Emission Modeling Software – PART5: This model estimates particulate emissions from highway vehicles. The model analyzes the pollution effect of in-use various fueled vehicles. The model is appropriate for comparative analyses, such as determining the potential impact of one traffic control measure versus another.
Indoor Air Quality Modeling: This is an indoor air quality model for analyzing the effect of emissions sources, sinks, ventilation, and air cleaners on indoor air quality.
RISK Model: This model is designed to calculate individual exposure to indoor air pollutants from emissions sources. The model can calculate exposure due to individual (as opposed to population) activity patterns and source use. It can also determine risk from the calculated exposure to indoor air pollution.
IAQX (Indoor Air Quality and Inhalation Exposure Model): This model performs conventional indoor air quality simulations, computes inhalation exposure, and estimates the adequate ventilation rate for improving indoor air quality.
Cost Analysis of Indoor Air Control Techniques
Energy Costs of Increased Ventilation in Humid Climates (DOE-2 Modeling): Energy Costs of Increased Ventilation in Humid Climates: This building energy methodology is used to improve indoor air quality. It assesses the energy costs of indoor air quality control through increased ventilation in a warm, humid climate (a climate that makes improving indoor air quality particularly challenging).
Cost Analysis of Indoor Air Control Techniques
Cost Analysis of Air Cleaners for Removing VOCs From Indoor Air: This model compares the cost of using granular activated carbon with the cost of using photocatalytic oxidation for treating volatile organic compounds in indoor air.
Natural and Specialized Ambient Emissions and Modeling: Emissions from natural sources are important contributors to many environmental problems. Our researchers have the capability to conduct on-site emission testing of natural sources such as forests and other vegetative species at both the ground and canopy levels. These include biogenic VOCs with current emphasis placed on fast reacting species and their role in aerosol formation. In addition the techniques being developed and utilized address sources of ammonia and its fate in the biosphere. Biomass burning, such as in prescribed burns in forests, are a major activity. In each area the work includes utilizing the data to enhance databases and to develop and/or improve models. This work has been extended to trans-boundary pollutants and has involved testing campaigns in other countries (e.g., Brazil and China).
Center for Subsurface Modeling Support (CSMoS): CSMoS provides modeling software used to perform site characterization and ground water flow and transport simulations. The models are also used for selecting groundwater remediation options at Resource Conservation and Recovery Act (RCRA) and Superfund sites, and for determining wellhead protection areas.
PARIS III (Program for Assisting the Replacement of Industrial Solvents): This software addresses industrial solvents whose continued use raises concern about worker health and toxics in the environment. This tool identifies pure chemicals or designs chemical mixtures that can serve as alternatives to more hazardous substances currently in use.
CAPE-OPEN (Computer-Aided Process Engineering): Chemical process simulation is a design tool that has long been used to determine the best chemical process options for the metal finishing industry. This program can be easily applied to other chemical process industries.
TEST (Toxicity Estimation Software Tool): TEST allows users to estimate toxicological and physical properties of a chemical from its molecular structure.
TRACI (Tool for the Reduction and Assessment of Chemical and other environmental Impacts): TRACI is a tool for comprehensive life cycle impact assessment, sustainability metrics, industrial ecology, process design, and pollution prevention.
EPANET: EPANET is software that models water distribution piping systems. It performs extended period simulations of the hydraulic and water quality behavior within pressurized pipe networks. EPANET was developed to help water utilities maintain and improve the quality of water delivered to consumers through distribution systems. It can be used to design sampling programs, study disinfectant loss and by-product formation, conduct system vulnerability and consumer exposure assessments, and to improve a system’s hydraulic performance.
Center for Subsurface Modeling Support (CSMoS) provides modeling software that perform site characterization and ground water flow and transport simulations. The models are also used for selecting ground water remediation options at Resource Conservation and Recovery Act (RCRA) sites, for studying Superfund-related issues, and for determining wellhead protection areas.
Storm Water Management Model (SWMM): SWMM is a general purpose urban study of the movement, distribution, and quality of water and conveyance system hydraulics software. EPA has extended SWMM to model the performance of specific types of low impact development (LID) controls, such as porous pavement, rain gardens, rain barrels, and vegetative swales. The model allows engineers and planners to accurately represent any combination of LID controls within a study area to determine their effectiveness in managing stormwater and combined sewer overflows.
Sanitary Sewer Overflow Analysis and Planning (SSOAP) Toolbox: The SSOAP toolbox is used for measuring rainfall infiltration and inflow and capacity analysis of sanitary sewer systems. The toolbox is currently interfaced with EPA's Storm Water Management Model Version 5.
Subsurface Models: Modeling software used to perform site characterization and ground water flow and transport simulations. The models are also used for selecting groundwater remediation options at Resource Conservation and Recovery Act (RCRA) and Superfund sites, and for determining wellhead protection areas.
System for Urban Stormwater Treatment and Analysis Integration (SUSTAIN) Model: SUSTAIN is a decision support system to develop, evaluate, and select optimal best management practices combinations at various watershed levels based on cost and effectiveness. It was developed to assist stormwater management professionals in developing plans to protect source waters and meet water quality goals.