CAMEO
- Computer-Aided Management of Emergency Operation (CAMEO) is a software package developed by NOAA (U.S. National Oceanic and Atmospheric Administration) and U.S. EPA (Environmental Protection Agency), for planning responses to chemical accidents. Includes
- http://archive.orr.noaa.gov/cameo/cameo.html

The ALOHA Model
- The Areal Location of Hazardous Atmospheres model (ALOHA) was developed by the USA's National Oceanic and Atmospheric Administration (NOAA) for use in emergency responses to accidental releases of neutrally buoyant or heavier-than-air gases.
- http://archive.orr.noaa.gov/cameo/aloha.html

AJ Design Software
- AJ Design Software is located in Albuquerque, New Mexico, USA and their web site has a number of free, online calculators for solving various atmospheric dispersion modeling algorithms.
- http://www.ajdesigner.com/phpdispersion/point_space_equation.php

YSA Atmospheric Modeling
- Yamada Science & Art Corporation (YSA), located in Santa Fe, New Mexico, USA, specializes in computer modeling of atmospheric airflows and the dispersion of airborne materials over complex terrain. YSA developed, markets, and provides user support for
- http://ysasoft.com/software/software.htm

The Indic-Airviro System
- The Swedish Meteorological and Hydrological Institute (SMHI) developed a dispersion modeling system with modules for: receiving input data from monitoring stations; an emission data base; and dispersion modeling. The dispersion module has a Gaussian mode
- http://www.indic-airviro.smhi.se/

Canarina Algoritmos Numericos
- Environmental software developers, located in Tenerife, Canary Islands, Spain, and whose products include an air pollution dispersion modelling program called DISPER.
- http://www.canarina.com/airpollutiondispersion.htm

Wölfel Software
- Wölfel is the developer and distributer of the IMMI noise and air dispersion modeling software. The company is headquartered in Berlin, Germany with an international office in Eupen, Belgium.
- http://www.woelfel.de/wms/noise/pollution/index.htm

Federal Aviation Administration's Dispersion Modeling Program
- Discusses the EDMS (Emissions and Dispersion Modeling System) developed by the U.S.'s Federal Aviation Administration (FAA) and how to order copies.
- http://www.faa.gov/about/office_org/headquarters_offices/aep/models/edms_model/

ATM-PRO
- A distributor of air dispersion modeling and other environmental software located in Nivelles,Belgium.
- http://www.atmpro.be/index.htm

The PHAST Software
- Developed by Det Norske Veritas (DNV) of Oslo, Norway, the PHAST software includes: a unified dispersion model (UDM) for various accidental releases; modeling of Bleves, jet fires, pool fires and vapor cloud explosions; handling of multicomponent mixtures
- http://www.dnv.com/software/all/phast/productInfo.asp

Polair
- An integrated model (offered by ODOTECH of Montreal, Canada) which includes a choice of mapping, meteorological data input and editing, and Gaussian or Puff dispersion modeling from point, line or area sources.
- http://www.odotech.qc.ca/polair/polair_en.pdf

The MIDAS Models
- Dispersion models, offered by ABS Consulting (from their office in Bethesda, Maryland, USA), for routine and accidental airborne releases. Versions available are: quick-running plume model, urban dispersion model and inside building model. Real-time disp
- http://www.absconsulting.com/midas/advantage.html

EXSIM
- A mathematical model that predicts the overpressure (explosion) generated by the accidental release and ignition of a gas cloud in a congested area of an industrial plant onshore, or offshore on oil drilling platforms. The model was developed by Shell Oi
- http://www.exsim-consultants.com/

PROKAS
- An emission factors model (as per the German Emission Factors Handbook) coupled with a Gaussian air dispersion model, PROKAS is used to calculate air pollutant concentrations caused by automotive traffic on a network of streets. Documentation is availabl
- http://www.lohmeyer.de/air-eia/models/prokas.htm

The AirQUIS Model
- The Norwegian Institute for Air Research (NILU) has developed an Air Quality Information System (AirQUIS) having: an emission inventory data base; dispersion models; and a geographical information system (GIS) module. The dispersion models include a sourc
- http://www.nilu.no/airquis/

Danish Operational Street Pollution Model - OSPM
- OSPM is a street pollution model, developed by the National Environmental Research Institute, Department of Atmospheric Environment of Denmark. A free evaluation version of OSPM with a Windows user interface can be downloaded.
- http://www.dmu.dk/1_viden/2_Miljoe-tilstand/3_luft/4_Spredningsmodeller/5_OSPM/default_en.asp

SCIPUFF Model
- The Titan Systems Corporation is a technology research and development group headquartered in San Diego, California and serving the U.S. defense and intelligence communities. The group has developed a Lagrangian puff dispersion model known as the SCIPUFF
- http://www.titan.com/products-services/abstract.html?docID=136

The CAPARS System
- Developed by AlphaTRAC, the Computer-Assisted Protective Action Recommendation System (CAPARS) provides plume extent, weather, hazard, and related information needed to support all levels of emergency management and response to an accidental release of ha
- http://www.alphatrac.com/

DIPCOT
- A three-dimensional Lagrangian model for dispersion over complex terrain. It was developed in Greece by the Environmental Research Laboratory (EREL) which is part of the Greek National Center for Scientific Research (DEMOKRITOS).
- http://milos.ipta.demokritos.gr/DIPCOT.htm

The NAME dispersion model
- The Nuclear Accident Model (NAME) is an essential part of the contingency plans for accidental releases of radioactivity into the atmosphere: to provide early warning for emergency response and to predict concentrations, depositions and dosages of radionu
- http://www.met-office.gov.uk/research/nwp/publications/nwp_gazette/3rd96/name2.html

The Disperse Model
- A Gaussian air dispersion model available as a Microsoft Excel spreadsheet from P&I Design Limited, a process design consultancy based in Stockton-on-Tees, England.
- http://www.pidesign.co.uk/disperse.htm

The Oklahoma Dispersion Model
- A simple model developed at the Oklahoma State University (in the USA) to assess the atmosphere's ability to disperse gases and particulates released at near ground level. The focus of the model is to evaluate downwind pollutant concentrations at distance
- http://agweather.mesonet.ou.edu/models/dispersion/default.html

Petersen & Kade
- A firm located in Hamburg, Germany which markets air dispersion modeling software that meets the standards developed by: the Association of German Engineers (Verband Deutscher Ingenieure, or simply VDI), and by Germany's Federal air pollution control regu
- http://www.petersen-kade.com/

The RITE Emergency Response System
- The RITE Emergency Response is a collection of tools and weather models designed to assist emergency response personnel in predicting the flow and dispersion of toxic releases into the atmosphere. It incorporates 3D wind field and air dispersion models, d
- http://www.ssesco.com/RITE.html

The DEGADIS model
- Dr. Tom Spicer and Dr. Jerry Havens of the University of Arkansas developed this model (for the U.S. Coast Guard and the Gas Research Institute) primarily for simulating the dispersion of denser-than-air flammable gases. The U.S. EPA later extended DEGADI
- http://www.ess.co.at/HITERM/MODELS/degadis.html

The SLAB model
- This software models the dispersion of dense gas releases from an evaporating pool, a horizontal jet, a vertical jet, or an instantaneous volume source. The dispersion is calculated from the conservation equations of mass, momentum, energy, and species. T
- http://www.ess.co.at/HITERM/MODELS/slab.html

The PlantSafe System
- Developed by GeoSphere Systems located in Doylestown, Pennsylvania, USA, the PlantSafe System is a rapid decision-support tool for managing a variety of critical situations including accidental releases and similar plant emergencies. It includes an air di
- http://www.geospheresystems.com/product/plantsafe.html

A Dispersion Model for Coastal Zones and Complex Terrain
- A description of the research program in the Mechanical Engineering Department at the University of Hong Kong that led to the development of a comprehensive air dispersion model for use in coastal zones and complex terrain such as exists in the Hong Kong
- http://www.hku.hk/rss/res_proj/16/16.htm

The TRACE Software
- Developed by Safer Systems L.L.C. of Camarillo, California, the TRACE software includes: source terms for time-varying and for steady flow releases; dispersion modeling for buoyant and for dense plumes; and modeling fires and explosions such as Bleves, po
- http://www.safersystem.com/Trace.htm

The OML Model
- A Gaussian plume model developed by Denmark's National Environmental Research Institute (NERI) that is recommended for environmental impact assessments of any planned new industrial sources. The model can be used at distances up to 20 km for high or low s
- http://www.dmu.dk/AtmosphericEnvironment/oml/OMLlong.htm

Lakes Environmental
- Located in Ontario, Canada, this firm provides easy-to-use air dispersion and risk assessment modeling software for Windows. Their air pollution dispersion modeling software includes: ISC-AERMOD View, RMP View, SCREEN View, and SLAB View, all of which are
- http://www.lakes-environmental.com/

HGSYSTEM
- HGSYSTEM is a suite of programs for assessing the dispersion of vapor from gas, liquid or two-phase releases. HGSYSTEM was first developed to model the release of Hydrogen Fluoride and ideal gases, and then extended to include multicomponent mixtures. Th
- http://www.hgsystem.com/hgweb.html

Online Version of Tox-Flam Model
- Provides an online version of the Tox-Flam model for the use of any visitor to this website. Tox-Flam is a Gaussian dispersion model for releases of inert buoyant pollutants into a finite mixing layer of a user-specified height. The model was developed by
- http://www.enviroware.com/enviweb/models/online/toxflam/toxflam.htm

The FLACS Explosion Model
- FLACS (FLame ACceleration Simulator) is an advanced tool for the modeling of ventilation, gas dispersion, vapour cloud explosions and blast in complex process areas. It was developed by GexCon AS of Norway.
- http://www.gexcon.com/index.php?src=flacs/flacs.html

Environmental Software and Services GmbH
- A software development and research company based in Austria who offer the AirWare integrated system which includes: an emissions database; data management for inputs from external meteorological and air quality monitors; the U.S. EPA's ISC2 and ISC3 sho
- http://www.ess.co.at/AIRWARE/

The DREAM Model
- The Danish Rimpuff and Eulerian Accidental release Model (DREAM), developed by the National Environmental Research Institute (NERI) of Denmark, is a high-resolution, three-dimensional tracer model for short and large scale atmospheric transport, dispersio
- http://www.dmu.dk/AtmosphericEnvironment/WEPTEL/DREAM/

ARIA Technologies
- A French firm of environmental consultants and developers of air dispersion modeling software ranging from small-scale local models to industrial models to regional models.
- http://www.aria.fr/english/logiciels/index.html

Support Center for Regulatory Air Models
- Extensive information from U.S. EPA on air pollution modeling software. Detailed description of mathematical models, guidance and other technical papers.
- http://www.epa.gov/scram001/

Cambridge Environmental Research Consultants
- Scientific consultants in the field of atmospheric dispersion located in Cambridge, England.. They offer a range of air dispersion models including: ADMS 3 for dispersion of industrial emissions; ADMS-SCREEN for initial screening studies of emission
- http://www.cerc.co.uk/software/index.htm

BREEZE Software and Meteorological Data Services
- BREEZE markets the software developed by Trinity Consultants of Dallas, Texas, USA. They offer air quality modeling software, meteorological data, training and support. Among the software packages offered are those based on the US EPA's ISC and AERMOD su
- http://www.breeze-software.com

BEE-Line Software
- BEE-Line Software is located in Asheville, North Carolina, USA and markets air dispersion modeling software with training and technical support. They specialize in creating user-intuitive versions of EPA air dispersion models for application in the Window
- http://beeline-software.com

Adair Geneva Project
- The APPH Module (Air Pollution and Public Health) integrates three different models in the Aidair Geneva system. The system was developed in Switzerland to draw maps of air pollution emissions from point sources (power plants, industries) and/or area sour
- http://ecolu-info.unige.ch/recherche/EUREKA/AIDAIR/SPPA_english.html

Air Dispersion Modeling, Inc.
- A firm in Oakton, Virginia selling a line of air pollution dispersion modeling software that includes: ISC View, RMP View, SCREEN View, SLAB View and SLAB View 3D ... all of which are U.S. EPA models adapted for use with Windows by Lakes Environmental.
- http://www.air-dispersion-model.com