In the context of this "Air Dispersion Modeling" category, air dispersion models may be defined as computerized mathematical calculations for predicting the dispersion behavior of air pollutants emitted into the atmosphere.
The many types of air di...
This page was last updated on August 28th, 2008
This page was last updated on August 28th, 2008
Air Dispersion Modeling (from Air Quality)
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Atmospheric Dispersion Modeling Liaison Committee (ADMLC)
ADMLC's main aim is to review current understanding of atmospheric dispersion for application in authorization or licensing of discharges to the atmosphere from industrial, commercial or other sites. ADMLC is concerned with long-term controlled releases a
Air Quality Control Company (AQCC)
Founded in 1993 by the Municipality of Tehran, Iran, the primary role of AQCC is providing research, consultation, planning and implementation of services regarding air and noise pollution in Tehran.
U.S. EPA's Support Center for Regulatory Air Models
The U.S. Environmental Protection Agency uses this site to provide information on the many dispersion models supporting regulatory programs required by U.S. law. All of the EPA's dispersion models and their Users' Manuals can be downloaded cost-free from
U.S. EPA's Air Quality Modeling Group
The Group is responsible for leadership on the full range of the EPA's air dispersion models. It also serves as the focal point on modeling techniques for other EPA headquarters staff, Regional Offices, and State and local agencies. The names, email addre
National Atmospheric Release Advisory Center
Located at the University of California's Lawrence Livermore National Laboratory (LLNL), the National Atmospheric Release Advisory Capability (NARAC) is a national emergency response service for real-time assessment of incidents involving accidental rele
European Environmental Agency: Urban Air Dispersion Models
A discussion of the algorithms used in urban air dispersion models such as: area source and elevated point source models; street canyon and highway sub-models; plume rise; converting one averaging time to another ... all contained in an annex of a report
The CAMP Research Program
The George Mason University in Virginia has a research program called CAMP (Comprehensive Atmospheric Modeling Program). The focus of the program, funded by the U.S. Defense Department, is on atmospheric transport and dispersion of releases of nuclear, bi
Literature References on Mesoscale Meteorology
A comprehensive list of literature references on mesoscale meteorology compiled by Dr. Ming Xue, many of which relate to various aspects of air dispersion modeling.
Dispersion Modeling Research at Madrid's Polytechnical University
Describes the dispersion modeling research programs of the Environmental Software and Modeling Group in the Computer Science School at the Polytechnical University in Madrid, Spain. Of interest is the IMW program which is a Visual Basic model based on th
Dispersion Modeling Feature Articles
This section of the Environmental-Expert.com site has a searchable index of feature articles concerning air pollution, including feature articles on dispersion modeling.
Finnish Meteorological Institute
The activities of the Air Quality Research department at the Finnish Meteorological Institute (FMI) include atmospheric dispersion modeling for: urban air quality, regional and long-range transport, and accidents involving hazardous materials.
Old Dominion University and the ISC3 Dispersion Models
Describes a graphical user interface (GUI), developed by the Civil Engineering Department of the Old Dominion University, for using the U.S. EPA's ISC3 models in the Microsoft Windows environment. Presents an excellent discussion of the ISC3 models inclu
Directory of Atmospheric Transport and Diffusion Consequence Assessment Models
An extensive directory (March 1999 issue) of atmospheric dispersion models produced by the Office of the Federal Coordinator for Meteorology (OFCM), National Oceanic and Atmospheric Administration.
Atmospheric Pollution Dispersion Modeling
Publicizes the book "Fundamentals Of Stack Gas Dispersion" ... a comprehensive single-source reference book on dispersion modeling of continuous, buoyant pollution plumes. Includes published peer reviews, complete Table of Contents, and informa
The Complete Gaussian Equation
Presents the detailed, complete equation for Gaussian air dispersion modeling, including: cross-wind dispersion parameter, vertical dispersion parameter due to reflection from the ground, and vertical dispersion parameter due to reflection from an inversi
CSIRO Air Quality Modelling and Dispersion
The modelling and dispersion program is part of the Commonwealth Scientific and Industrial Research Organization (CSIRO) in Australia. Within the program, the Pollution Dispersion team: conducts laboratory and field studies of convective boundary layer g
Dispersion Modeling Conversions and Formulas
This online technical article provides a number of useful unit conversions and formulas pertaining to air dispersion modeling. The same website includes five more online technical articles.
Risoe National Laboratory, Denmark
The Atmospheric Transport & Exchange section of the Risoe laboratory performs research into boundary-layer meteorology and atmospheric turbulence, and into environmental problems related to the transport of airborne pollutants. Typical research tasks
Pollution Meteorology and Dispersion
Publicizes the book "Air Pollution Meteorology and Dispersion" ... a review of the basic theories, models, experiments, and observations of pollutant dispersal in the atmosphere.
Regulatory air dispersion models in Australia
Reviews and guide (provided by the University of New South Wales in Australia) to regulatory air dispersion models used in Australia for odour dipersion modelling and impact assessment.
Atmospheric Dispersion of Chemicals (E-mail Discussion List)
Atmospheric Dispersion of Chemicals is an e-mail discussion list where people working in the field of atmospheric dispersion modeling can exchange experiences.
The CAPARS System
The Computer-Assisted Protective Action Recommendation System (CAPARS) is an integrated model for predicting the path and impacts of an atmospheric release of hazardous materials. It is used by a Regional Atmospheric Response Center (RARC) in Denver, Col
The Laboratory for Atmospheric Research
Located at the Washington State University (in Pullman, Washington, USA), the Laboratory for Atmospheric Research (LAR) investigates the fundamental nature of pollutant transport and dispersion through a combination of halogenated tracer field programs an
Omni - Air Pollution Modeling In Practice
Omni is a demonstrator site for disseminating modeled and monitored air pollution data in an accessable form. Details of methodology are included. The data covers the London, England area.
NOAA's Air Resources Laboratory (ARL)
Within the U.S.'s National Oceanic and Atmospheric Administration (NOAA), the ARL conducts research on the transport, dispersion, transformation, and removal of atmospheric pollutants ... leading to the development of air quality and dispersion models. Th
Logic Diagram For Using Briggs' Plume Rise Equations
This online technical article chronicles the evolution of Briggs' plume rise equations and provides a logic diagram for using the Briggs equations to calculate the plume rise of bent-over buoyant plumes. The same website has four more online technical art
Literature References on Lagrangian Air Dispersion Modeling
A comprehensive list of literature references on Lagrangian air dispersion modeling, compiled by Dr. Marek Uliasz.
StadtKlima: The International Association For Urban Climate
A list of air quality and air pollution dispersion models with descriptions, details and contacts for obtaining further information. Most of the listed models were developed in Germany, and the StadtKlima Association is headquartered at the University of
Dispersion Modeling Guidance
Local Air Quality Management (LAQM) guidance document published by the United Kingdom's Department for Environment, Food and Rural Affairs. Annex 3 contains guidance on dispersion modeling.
Calculating Accidental Release Flow Rates from Pressurized Gas Systems
This online technical article presents and explains two published source-term models for calculating the time-dependent decrease in pressure, temperature and weight of gas in a pressurized gas system or vessel during an accidental release. The same websit
UCR Air Quality Modeling Group
The mechanical engineering department of the University of California at Riverside (UCR) has an air quality modeling group performing research in the development and application of small-scale dispersion models, as well as the development of simplified an
The Nuclear Accident Model (NAME)
Developed by the United Kingdom's Meteorological Office, the NAME model is part of the contingency plans in the event of accidental releases of radioactivity into the atmosphere: to provide early warning for the guidance of emergency services; and to pred
Atmospheric Research and Information Centre (ARIC)
Based at the Manchester Metropolitan University in the United Kingdom, ARIC is a research center for study of atmospheric pollution issues caused by industrial, power generation, and transportation sources. ARIC focuses on the basic elements of the scienc
Los Alamos National Laboratory (LANL) Air Quality Team
The team is part of the Technology & Safety Assessment (TSA-4) Division of the LANL. The air quality team works with meteorological, air chemistry, plume dispersion, computational fluid dynamics, and emissions models. The site includes model descripti
The Aerospace Corporation
The Environmental Systems division has developed a model validation program (MVP) for improving the toxic hazard dispersion models used at space vehicle launch sites (Cape Canaveral in Florida and Vandenberg Air Force Base in California). Launch cloud an
AQM Resource Centre
The Air Quality Management (AQM) Resource Centre is maintained at the University of the West of England in Bristol, England. It provides much useful information, including brief descriptions of many British and USA air dispersion models.
Certified Consulting Meteorologists
Provides directories by state and by speciality of the Certified Consulting Meteorologist members of the American Meteorological Society, many of whom specialize in air pollution dispersion modeling analyses and studies.
SCRAM Public Forum
The U.S. EPA's SCRAM website public discussion forum (moderated) for all aspects of the EPA's various air pollution dispersion models.
European Environmental Agency: List of Air Dispersion Models
An extensive list of European air dispersion models contained in an appendix of a report published by the European Environmental Agency headquartered in Copenhagen, Denmark.
Workbook on Atmospheric Dispersion Estimates
The revised second edition of D. Bruce Turner's book provides an understanding of dispersion modeling as currently practiced. The book and accompanying diskette explain: how to determine the impact of air pollution sources; the effects of wind, turbulen
Source Terms for Accidental Releases
This online technical article provides the source term equations (and explains how to use them) for calculating the flow rates from a number of different types of accidental gaseous releases. The same website has five other online technical articles.
Error Propagation in Air Dispersion Modeling
This online technical article provides a sensitivity study of the Gaussian dispersion modeling of continuous, buoyant pollution plumes which illustrates how seemingly minor changes in some of the key variables can result in a propagated over-prediction fa
The GAIA Air Dispersion Model Database
A database of 27 different air dispersion models. Each model entry includes: a description, where to obtain the software, the original authors, and literature references pertaining to the model. Sponsored by a consortium of 10 countries in Europe, Africa,
Atmospheric Dispersion Modeling Resources
A report published in 1995, "Atmospheric Dispersion Modeling Resources", can be downloaded from this site. It includes descriptions, contact people, and other details about 94 dispersion models. The report was developed by the: Subcommittee on C
Multiplan R&F
Based in the Abu Dhabi, United Arab Emirates and with an office in Rueil-Malmaison,France, this firm's services include health, safety and environmental (HSE)training courses either online or onsite. Courses are available in air dispersion modeling, HAZO
ADMLC's main aim is to review current understanding of atmospheric dispersion for application in authorization or licensing of discharges to the atmosphere from industrial, commercial or other sites. ADMLC is concerned with long-term controlled releases a
Founded in 1993 by the Municipality of Tehran, Iran, the primary role of AQCC is providing research, consultation, planning and implementation of services regarding air and noise pollution in Tehran.
The U.S. Environmental Protection Agency uses this site to provide information on the many dispersion models supporting regulatory programs required by U.S. law. All of the EPA's dispersion models and their Users' Manuals can be downloaded cost-free from
The Group is responsible for leadership on the full range of the EPA's air dispersion models. It also serves as the focal point on modeling techniques for other EPA headquarters staff, Regional Offices, and State and local agencies. The names, email addre
Located at the University of California's Lawrence Livermore National Laboratory (LLNL), the National Atmospheric Release Advisory Capability (NARAC) is a national emergency response service for real-time assessment of incidents involving accidental rele
A discussion of the algorithms used in urban air dispersion models such as: area source and elevated point source models; street canyon and highway sub-models; plume rise; converting one averaging time to another ... all contained in an annex of a report
The George Mason University in Virginia has a research program called CAMP (Comprehensive Atmospheric Modeling Program). The focus of the program, funded by the U.S. Defense Department, is on atmospheric transport and dispersion of releases of nuclear, bi
A comprehensive list of literature references on mesoscale meteorology compiled by Dr. Ming Xue, many of which relate to various aspects of air dispersion modeling.
Describes the dispersion modeling research programs of the Environmental Software and Modeling Group in the Computer Science School at the Polytechnical University in Madrid, Spain. Of interest is the IMW program which is a Visual Basic model based on th
This section of the Environmental-Expert.com site has a searchable index of feature articles concerning air pollution, including feature articles on dispersion modeling.
The activities of the Air Quality Research department at the Finnish Meteorological Institute (FMI) include atmospheric dispersion modeling for: urban air quality, regional and long-range transport, and accidents involving hazardous materials.
Describes a graphical user interface (GUI), developed by the Civil Engineering Department of the Old Dominion University, for using the U.S. EPA's ISC3 models in the Microsoft Windows environment. Presents an excellent discussion of the ISC3 models inclu
An extensive directory (March 1999 issue) of atmospheric dispersion models produced by the Office of the Federal Coordinator for Meteorology (OFCM), National Oceanic and Atmospheric Administration.
Publicizes the book "Fundamentals Of Stack Gas Dispersion" ... a comprehensive single-source reference book on dispersion modeling of continuous, buoyant pollution plumes. Includes published peer reviews, complete Table of Contents, and informa
Presents the detailed, complete equation for Gaussian air dispersion modeling, including: cross-wind dispersion parameter, vertical dispersion parameter due to reflection from the ground, and vertical dispersion parameter due to reflection from an inversi
The modelling and dispersion program is part of the Commonwealth Scientific and Industrial Research Organization (CSIRO) in Australia. Within the program, the Pollution Dispersion team: conducts laboratory and field studies of convective boundary layer g
This online technical article provides a number of useful unit conversions and formulas pertaining to air dispersion modeling. The same website includes five more online technical articles.
The Atmospheric Transport & Exchange section of the Risoe laboratory performs research into boundary-layer meteorology and atmospheric turbulence, and into environmental problems related to the transport of airborne pollutants. Typical research tasks
Publicizes the book "Air Pollution Meteorology and Dispersion" ... a review of the basic theories, models, experiments, and observations of pollutant dispersal in the atmosphere.
Reviews and guide (provided by the University of New South Wales in Australia) to regulatory air dispersion models used in Australia for odour dipersion modelling and impact assessment.
Atmospheric Dispersion of Chemicals is an e-mail discussion list where people working in the field of atmospheric dispersion modeling can exchange experiences.
The Computer-Assisted Protective Action Recommendation System (CAPARS) is an integrated model for predicting the path and impacts of an atmospheric release of hazardous materials. It is used by a Regional Atmospheric Response Center (RARC) in Denver, Col
Located at the Washington State University (in Pullman, Washington, USA), the Laboratory for Atmospheric Research (LAR) investigates the fundamental nature of pollutant transport and dispersion through a combination of halogenated tracer field programs an
Omni is a demonstrator site for disseminating modeled and monitored air pollution data in an accessable form. Details of methodology are included. The data covers the London, England area.
Within the U.S.'s National Oceanic and Atmospheric Administration (NOAA), the ARL conducts research on the transport, dispersion, transformation, and removal of atmospheric pollutants ... leading to the development of air quality and dispersion models. Th
This online technical article chronicles the evolution of Briggs' plume rise equations and provides a logic diagram for using the Briggs equations to calculate the plume rise of bent-over buoyant plumes. The same website has four more online technical art
A comprehensive list of literature references on Lagrangian air dispersion modeling, compiled by Dr. Marek Uliasz.
A list of air quality and air pollution dispersion models with descriptions, details and contacts for obtaining further information. Most of the listed models were developed in Germany, and the StadtKlima Association is headquartered at the University of
Local Air Quality Management (LAQM) guidance document published by the United Kingdom's Department for Environment, Food and Rural Affairs. Annex 3 contains guidance on dispersion modeling.
This online technical article presents and explains two published source-term models for calculating the time-dependent decrease in pressure, temperature and weight of gas in a pressurized gas system or vessel during an accidental release. The same websit
The mechanical engineering department of the University of California at Riverside (UCR) has an air quality modeling group performing research in the development and application of small-scale dispersion models, as well as the development of simplified an
Developed by the United Kingdom's Meteorological Office, the NAME model is part of the contingency plans in the event of accidental releases of radioactivity into the atmosphere: to provide early warning for the guidance of emergency services; and to pred
Based at the Manchester Metropolitan University in the United Kingdom, ARIC is a research center for study of atmospheric pollution issues caused by industrial, power generation, and transportation sources. ARIC focuses on the basic elements of the scienc
The team is part of the Technology & Safety Assessment (TSA-4) Division of the LANL. The air quality team works with meteorological, air chemistry, plume dispersion, computational fluid dynamics, and emissions models. The site includes model descripti
The Environmental Systems division has developed a model validation program (MVP) for improving the toxic hazard dispersion models used at space vehicle launch sites (Cape Canaveral in Florida and Vandenberg Air Force Base in California). Launch cloud an
The Air Quality Management (AQM) Resource Centre is maintained at the University of the West of England in Bristol, England. It provides much useful information, including brief descriptions of many British and USA air dispersion models.
Provides directories by state and by speciality of the Certified Consulting Meteorologist members of the American Meteorological Society, many of whom specialize in air pollution dispersion modeling analyses and studies.
The U.S. EPA's SCRAM website public discussion forum (moderated) for all aspects of the EPA's various air pollution dispersion models.
An extensive list of European air dispersion models contained in an appendix of a report published by the European Environmental Agency headquartered in Copenhagen, Denmark.
The revised second edition of D. Bruce Turner's book provides an understanding of dispersion modeling as currently practiced. The book and accompanying diskette explain: how to determine the impact of air pollution sources; the effects of wind, turbulen
This online technical article provides the source term equations (and explains how to use them) for calculating the flow rates from a number of different types of accidental gaseous releases. The same website has five other online technical articles.
This online technical article provides a sensitivity study of the Gaussian dispersion modeling of continuous, buoyant pollution plumes which illustrates how seemingly minor changes in some of the key variables can result in a propagated over-prediction fa
A database of 27 different air dispersion models. Each model entry includes: a description, where to obtain the software, the original authors, and literature references pertaining to the model. Sponsored by a consortium of 10 countries in Europe, Africa,
A report published in 1995, "Atmospheric Dispersion Modeling Resources", can be downloaded from this site. It includes descriptions, contact people, and other details about 94 dispersion models. The report was developed by the: Subcommittee on C
Based in the Abu Dhabi, United Arab Emirates and with an office in Rueil-Malmaison,France, this firm's services include health, safety and environmental (HSE)training courses either online or onsite. Courses are available in air dispersion modeling, HAZO
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