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 dispersion models include those for modeling: the continuous emission of buoyant pollutant plumes; the non-continuous accidental releases of either
buoyant or heavier-than-air (i.e., dense gas) pollutants;
puff emissions; point-source emissions; area-source or line-source emissions; mobile transportation-source emissions; fire and smoke emission models; etc. Air quality models for urban airsheds are probably best placed in the "Air Quality" category rather than in this "Air Dispersion" category.
Sources for air dispersion modeling information include governmental agencies, research institutes, university faculty and post-graduate students, environmental consultants, industrial dispersion modeling practitioners, and pollution meteorologists.
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, www.ess.co.at/GAIA/models/aria.htm
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 information about www.air-dispersion.com
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 www.epa.gov/ttn/scram
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. www.aqcc.org/index.htm
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 www.air-dispersion.com/feature.html
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. www.fmi.fi/research_air/air.html
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 www.arl.noaa.gov
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 www.cee.odu.edu/air/isc3/odu_isc3.html
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 www.air-dispersion.com/feature2.html
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. twister.ou.edu/References.all.html
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 www.multiplan.co.ae/pr01.htm
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 artico.lma.fi.upm.es/research.html
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 www.engr.ucr.edu/mechanical
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 www.ce.wsu.edu/LAR/LARresearch/PTD/PTD.htm
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 www.epa.gov/oar/oaqps/organization/emad/aqmg.html
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 www.rarc.org/Overview/CAPARSSummary.HTML
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. www.uwe.ac.uk/aqm/centre/model.html
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. www.air-dispersion.com/source.html
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. reports.eea.eu.int/92-9167-028-6/en/page008.html
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 www.stadtklima.de/webklima/EN/E_1tools.htm
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 www.crcpress.com/us/product.asp?sku=L1023&dept%5Fid=1
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. www.air-dispersion.com/formulas.html
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 www.air-dispersion.com/briggs.html
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 reports.eea.eu.int/TEC11a/en/page014.html
Forsiden | 
