41. Earth Tech A worldwide environmental consultant firm, headquartered in Long Beach, California, USA, whose modeling group are recognized experts in air dispersion modeling. They have developed or enhanced many models (CALPUFF, CALMET, CALGRID, BLP, ISC3, CTDMPLUS, OCD, and KSP), several of which are now U.S. EPA 'Guideline' models. http://src.com/aq/amodels1.htm

Photochemical Meteorological Deposition Air Toxic Emissions Model Development Complex Terrain Applications Air quality models are used to describe how pollutants emitted into the air are transported downwind and to predict the ground level concentrations of the pollutants. It is difficult to accurately predict downwind concentrations because the nature of air movement is very complex. Heating and cooling of the air, obstacles such as buildings or hills that have to be negotiated by the air, and chemical reactions for pollutants such as ozone or acid rain, all add layers of complexity. Earth Tech air quality scientists are internationally recognized experts in the area of air quality modeling and model development. They have developed or enhanced many widely-used air quality and meteorological models, including CALPUFF, CALMET, CALGRID, BLP, ISC3 (downwash and deposition), CTDMPLUS, OCD, and KSP. Several of these models have been accepted by the US EPA as 'Guideline' models recommended for regulatory use. Our scientists have published numerous journal articles and books, conducted modeling workshops, and participated in scientific conferences worldwide. This position at the leading edge of modeling and scientific technology enables us to assist clients find cost-effective solutions to today's complex environmental issues. Many companies can apply routine air modeling techniques, but few, if any, can match our skills in developing, refining, and customizing models to meet client needs.

42. Better Air Quality Workshop - Use Of Isc3 Air Dispersion Model To Determine Sox Abstract. air dispersion modeling of SOx and NOx emissions from a petroleum refinery was performed using the software ISC3. Monthly http://www.cleanairnet.org/baq2003/1496/article-58090.html

@import "stylesheet-3413.css"; var aid = '58090'; var pvid = Array('15230', '13724', '18350', '13664', '13841', '13622'); var cid = '868'; var iid = '1496'; var pnid = Array('1895', '2062', '1955', '1892', '1884', '1893'); Home Introduction Workshop format and program Presentation guidelines ... Registration If your organization would like to sponsor BAQ 2003 or future activities of the Clean Air Initiative for Asian Cities, contact Cornie Huizenga at chuizenga@adb.org Presentations Poster sessions Use of ISC3 Air Dispersion Model to Determine SOx And NOx Emissions from a Petroleum Refinery Plant Jan-Michael Y. Carrillo and Dr. Genandrialine L. Peralta, Environmental Engineering Graduate Program, Department of Chemical Engineering, University of the Philippines Use Of Isc3 Air Dispersion Model To Determine Sox And Nox Emissions From A Petroleum Refinery Plant [.doc, 295.4Kb] Abstract Go back... Sponsors Diamond Sponsors Platinum Sponsors Gold Sponsors

43. Lukol Directory - Science Environment Air Quality Air Dispersion Modeling Conversions and Formulas This online technical article provides a number of useful unit conversions and formulas pertaining to air dispersion modeling. http://www.lukol.com/Top/Science/Environment/Air_Quality/Air_Dispersion_Modeling

Lukol Directory - Science Environment Air Quality ... 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 science: emission characterization and estimation; ambient air monitoring; predictive modeling; and control technologies. http://www.doc.mmu.ac.uk/aric/index.html 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 releases of nuclear, chemical, biological, or natural hazardous material. Additional information is available at http://www.llnl.gov/str/Baskett.html http://narac.llnl.gov NOAA's Air Resources Laboratory (ARL) http://www.arl.noaa.gov 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 website includes five other online technical articles.

44. Air Pollution, Permits, Emissions, Studies, And Incinerator Consulting Environmental engineering consultants, located in Orlando, Florida, USA, whose services include industrial air pollution studies, air permitting, emission inventories and air dispersion modeling. http://www.grovescientific.com/air_pollution.html

Air Pollution Prepare permit applications for construction or operation permits, annual operation reports, renewal application, permit transfers and permit modification. Air pollution control equipment feasibility and design studies Title V permitting Emissions inventories Visible emissions testing General engineering consulting on all types of air pollution sources Air dispersion modeling Air toxics monitoring Air curtain, solid and bio-hazardous waste incinerator consulting Resource for energy recovery and source testing. Catalytic or thermal incinerator consulting Ambient air (carbon monoxide, particulates, etc.) and weather monitoring Expert testimony Other Services: Industrial Hygiene and Indoor Environmental Quality Environmental Assessments Laboratory Services Home ... Contact Grove Scientific 6140 Edgewater Dr. Suite F Orlando, FL 32810 phone: (407) 298-2282 FAX: (407) 290-9038 email: info@grovescientific.com

45. :: Ez2Find :: Air Dispersion Modeling Guide air dispersion modeling, Guides, air dispersion modeling. ez2Find Home Directory Science Environment Air Quality air dispersion modeling (263) http://ez2find.com/cgi-bin/directory/meta/search.pl/Science/Environment/Air_Qual

Guide : Air Dispersion Modeling Global Metasearch Any Language English Afrikaans Arabic Bahasa Melayu Belarusian Bulgarian Catala Chinese Simplified Chinese Traditional Cymraeg Czech Dansk Deutsch Eesti Espanol Euskara Faroese Francais Frysk Galego Greek Hebrew Hrvatski Indonesia Islenska Italiano Japanese Korean Latvian Lietuviu Lingua Latina Magyar Netherlands Norsk Polska Portugues Romana Russian Shqip Slovensko Slovensky Srpski Suomi Svenska Thai Turkce Ukrainian Vietnamese Mode All Words Any Word Phrase Results Timeout Depth Adult Filter Add to Favorites Other Search Web News Newsgroups Images Guides Air Dispersion Modeling ez2Find Home Directory Science Environment ... Air Quality : Air Dispersion Modeling Consultants Software Web Sites The Aerospace Corporation [Site Info] [Translate] [Open New Window] 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 and atmospheric tracer data collected by the MVP were used to test and upgrade the predictions. URL: http://www.aero.org/envsys/MVP.html

46. Environmental Engineering - Hastings Chemical and environmental consultants based in St. Louis, Missouri, USA whose services include air dispersion modeling used for air permitting, accidental release modeling, and risk assessments. http://www.hastingsengineering.com/Engineers.htm

KEY PERSONNEL Rancy Hastings, P.E. - President Project Management, Regulatory Assistance, Air Pollution Control System Design, Air Compliance Strategy Development, Expert Testimony. You may contact Rancy Hastings at rancy@hastingsengineering.com. Kathy Strubberg, EIT - Project Engineer Project Management, Regulatory Assistance, Air Compliance Strategy Development, Training Program Development You may contact Kathy Strubberg at kathy@hastingsengineering.com. Dell Wood, Environmental Technician Project Management, Air Pollution Measurement, Water Sampling, Property Risk Assessments You may contact Dell Wood at dell@hastingsengineering.com Michael Stafford, Ph.D., P.E. - Associate Ambient Air Modeling, Regulatory Assistance, Air Compliance Strategy Development, Expert Testimony You may contact Michael Stafford at michael@hastingsengineering.com Marketing, Web Page Design, Business Management You may contact Sandy Hastings at sandy@hastingsengineering.com Top For more information, contact engineering@hastingsengineering.com

47. :: Ez2Find :: Consultants Guides, Consultants. ez2Find Home Directory Science Environment Air Quality air dispersion modeling Consultants (167) Related Categories http://ez2find.com/cgi-bin/directory/meta/search.pl/Science/Environment/Air_Qual

Guide : Consultants Global Metasearch Any Language English Afrikaans Arabic Bahasa Melayu Belarusian Bulgarian Catala Chinese Simplified Chinese Traditional Cymraeg Czech Dansk Deutsch Eesti Espanol Euskara Faroese Francais Frysk Galego Greek Hebrew Hrvatski Indonesia Islenska Italiano Japanese Korean Latvian Lietuviu Lingua Latina Magyar Netherlands Norsk Polska Portugues Romana Russian Shqip Slovensko Slovensky Srpski Suomi Svenska Thai Turkce Ukrainian Vietnamese Mode All Words Any Word Phrase Results Timeout Depth Adult Filter Add to Favorites Other Search Web News Newsgroups Images Invisible Web Metasearch Business Nation Guides Consultants ez2Find Home Directory Science Environment ... Air Dispersion Modeling : Consultants Related Categories Science: Environment: Air Quality: Products and Services: Software Science: Environment: Products and Services: Consultants Science: Environment: Products and Services: Software Web Sites ABS Consulting Inc. [Site Info] [Translate] [Open New Window] An international firm (headquartered in Houston, Texas, USA) providing engineering, and technological services for analyzing and managing hazards, risk, and safety as well as minimizing environmental impacts. Their air dispersion models, offered from their office in Bethesda, Maryland are for routine and accidental airborne releases. Versions available are: quick-running plume model, urban dispersion model and inside building model. URL: http://www.absconsulting.com/midas/advantage.html

48. Iris Environmental - Engineering And Environmental Management Consultants - Home Consulting and engineering firm based in Oakland, California , USA whose environmental management services include air dispersion modeling. http://www.irisenv.com/main/

Welcome to Iris Environmental Iris Environmental is a full-service consulting and engineering firm offering environmental management support to industrial and commercial corporations, developers, lending institutions and other private and public sector organizations that face environmental challenges. We provide technical and strategic support in the following areas: Brownfields Redevelopment Environmental Due Diligence Site Investigation/Site Characterization Human Health and Ecological Risk Assessment Site Remediation Environmental Management Systems Toxicology Health and Safety Systems Emissions Estimation Air Quality Modeling Subsurface Fate and Transport Risk Management Risk Communication Regulatory Agency Negotiations Litigation Support Strategic Environmental Management Iris Environmental

49. AOL Canada Search: Search Results «sÀref= ¯ ¸font SubCategories In air dispersion modeling Consultants (136); Software (52). Sites In This Category Web results http://search.aol.ca/cat.adp?id=203984&layer=&from=subcats

50. Zephyr Environmental Corporation: Training An environmental consulting firm, headquartered in Austin, Texas, USA, whose air dispersion modeling services include simple and complex terrain modeling; line and mobile source modeling; and modeling of accidental dense gas releases. Zephyr utilizes U.S. EPA models such ISCST3 and SCREEN3; and public domain models such as SLAB and RMPCOMP. http://www.zephyrenv.com/nonframes/serv.air.html

Air Quality Permitting I Control Technology Evaluations I Atmospheric Dispersion Modeling I Emissions Inventory I Air Quality Permitting Air quality permitting can be a complicated and expensive process. At Zephyr, we simplify this task for our clients by focusing on their needs and providing only those services necessary to meet their objectives. The engineers and scientists at Zephyr have prepared more than 1,500 approved permit applications, permit amendments, permit exemption applications, and related studies over the past 30 years. Our permitting project experience includes the preparation of: State minor source permit applications Federal New Source Review (PSD and Non-attainment) permit applications Title V operating permit applications Exemption applications Permitting strategies Feasibility evaluations Control Technology Evaluations Zephyr's staff stays abreast of the latest emissions control technologies available to industry and routinely assists its clients in selecting the most appropriate technologies for controlling their emission sources. Zephyr provides the following services in this area: Abatement equipment specification and conceptual design Recommendations for modification of existing controls Pollution prevention through process optimization and improvements RACT, BACT, MACT, and LAER analyses

51. Air Quality: Air Dispersion Modeling Air Quality air dispersion modeling. at the Polytec Error Propagation in air dispersion modeling. This online technical article http://www.puredirectory.com/Science/Environment/Air-Quality/Air-Dispersion-Mode

Air Quality: Air Dispersion Modeling Home Science Environment Air Quality : Air Dispersion Modeling Consultants Software google_ad_client = 'pub-3272565765518472';google_ad_width = 336;google_ad_height = 280;google_ad_format = '336x280_as';google_color_border = 'FFFFFF';google_color_bg = 'FFFFFF';google_ad_channel ='7485447737';google_alternate_color = 'FFFFFF';google_color_link = '0000FF';google_color_url = '008000';google_color_text = '000000'; Standard Listings 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... Air Resources Laboratory (ARL) Researching the processes that affect the quality of the atmosphere, ARL provides scientific advice to elements of NOAA and other Government agenc... 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 usef... Atmospheric Dispersion Modeling Liaison Committee A United Kingdom committee of members from government departments and agencies, nuclear industries and research organizations. The committee's pur... Atmospheric Dispersion Modeling Resources A report published in 1995, "Atmospheric Dispersion Modeling Resources", can be downloaded from this site. It includes descriptions, contact peopl...

52. Services Of Aegis Environmental Inc. Located in Richmond, Virginia, USA, the Aegis Environmental firm offers environmental consulting services including air dispersion modeling, offsite consequence analyses, air permitting and regulatory compliance strategies. http://www.aegis-environmental.com/services.html

Main Key Staff Regulatory Alerts ... Links Aegis Environmental, Inc. is a small service-oriented environmental consulting firm focused on providing integrated, cost-effective environmental management strategies. The managing principals have over fifty years of combined experience in dealing with environmental issues. Aegis works with its clients to expand their options, rather than restrict operations. Whether you are looking for assistance with an air permit application for a facility modification, development of contingency plans or training programs, or an evaluation of comprehensive multi-media environmental compliance strategies, Aegis has the knowledge and experience you need at competitive rates, with an unwavering emphasis on service. Our Services Include: Compliance Strategies Management of Change Representative Projects: New Source Review air permit application development, including minor, Non-attainment, and PSD permits; complex air dispersion modeling; and negotiation of innovative, flexible compliance terms. Title V application development and negotiation of Title V terms.

53. Air Quality: Air Dispersion Modeling: Software Air Quality air dispersion modeling Software. The system was developed in Switz air dispersion modeling, Inc. A firm in Oakton http://www.puredirectory.com/Science/Environment/Air-Quality/Air-Dispersion-Mode

Air Quality: Air Dispersion Modeling: Software Home Science Environment Air Quality ... Air Dispersion Modeling : Software google_ad_client = 'pub-3272565765518472';google_ad_width = 336;google_ad_height = 280;google_ad_format = '336x280_as';google_color_border = 'FFFFFF';google_color_bg = 'FFFFFF';google_ad_channel ='7485447737';google_alternate_color = 'FFFFFF';google_color_link = '0000FF';google_color_url = '008000';google_color_text = '000000'; Standard Listings 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 com... ABS Consulting Inc. An international firm (headquartered in Houston, Texas, USA) providing engineering, and technological services for analyzing and managing hazards... 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 Switz... 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 ... Aircraft Exhaust Plume Model The model PARANOX (PArametrization of Aircraft emitted NOX) was developed by the Netherlands Meteorological Institute to describe the chemical pro...

54. Environmental Engineering, Pollution Control And Prevention, Waste Minimization, Located in Wolfville, Nova Scotia, Canada, the EnviroChem Engineering Consultants firm offers chemical engineering services as well as environmental engineering services. Their environmental services include ambient air monitoring, stack sampling and air dispersion modeling using models such as ISC3, AFTOX, SLAB, CALINE3 and SCREEN3. http://home.istar.ca/~ece/model.html

Computer Modeling of Environmental Systems One of EnvironChem Engineering Consultants (ECE) main areas of expertise is in the application of environmental models. We are dedicated to the application of innovative and cost effective solutions to environmental problems. Our services range from simple screening level assessments to complex multi-dimensional applications, for the purposes of: Evaluation of environmental data Prediction/evaluation of environmental spills Evaluation of thermal discharges/temperature modeling Storm water hydraulics and flooding Evaluation contaminant transport Determination of maximum ground-level concentrations Calculation of effective stack height Particulate distributions, terminal or settling velocity Deposition of particulate from stacks Estimation of emission rate from monitoring data, emission factors, and mass balance Modeling of methane emission from landfills Modeling of atmospheric and noise impacts from mobile sources ECE identifies and applies innovative computer models and integrated database management systems customized for clients for pollutant source assessment, monitoring, design of pollution control equipment, and remediation activities. Also, the firm offers high quality training for environmental professionals interested in understanding the full impact of computer modeling on the environment and natural resources. All in-house models have been purchased from various commercial vendors or compiled from public domain sources such as EPA, USAF, API, Ontario MEE, Alberta MoE, etc. Most of programs are designed for MS-DOS platform, but there are also several programs written for MS Windows or Unix platforms. Our powerful, up-to-date PCs connected with digital post-processors, color printers, scanners, etc., assures that all projects are of the highest professional standards and are completed on time, on budget, and to the client's total satisfaction.

55. The Air Group - Dallas, TX | Environmental Consulting, Air Permits, Compliance Consultants located in Dallas, Texas, USA who offer air permitting and compliance services, air dispersion modeling, and training workshops. http://theairgroup.net

var browserOK = false; var pics; Specializing in Air Permits and Compliance TheAirGroup.Net The Air Group Attn: Jeff Secrest 79 Trout Bend, Box 87 Victor, ID 83455 Home Overview Workshops Info Web design and hosting by BAE Webservices

56. Air Dispersion Modeling Innovations And Patents air dispersion modeling Innovations and Patents. More information on air dispersion modeling and air dispersion modeling Research References. http://www.air.xq23.com/energy_science_resources/Air_Dispersion_Modeling.html

57. Atmospheric Dispersion Modelling - Air Quality Management A Canadian consulting firm offering services in air dispersion modeling (including odor dispersion), stack sampling, and environmental permitting. Most of Lehder's modeling work for clients utilizes the U.S. EPA's Industrial Source Complex Short Term Model Version 3 (ISCST3). http://www.lehder.com/airquality/air_dispersion.html

Atmospheric Dispersion Modelling Atmospheric Dispersion Modelling is a widely accepted regulatory tool used to assess environmental impact from a facility for a variety of contaminants and under numerous meteorological conditions. Many regulatory agencies assess ambient air compliance using dispersion modelling. Facilities can use this tool to predict the potential impact of modified or new processes, new products and new sources even while still in the design phase, and plan for abatement or mitigative measures. Desktop computer modelling is a rapidly advancing field that uses specialized computer programs to predict ambient concentrations from a facility. LEHDER Environmental Services conducts most of its modelling assessments for clients using the USEPA models ISCST3, ISCSTPrime or AERMOD. These are all models that are capable of computing ground level concentrations at specific downwind receptors under a variety of meteorological conditions, emission scenarios and changes in topography. The ISCST models are the most widely used in North America and have been accepted by many jurisdictions as a regulatory model. AERMOD is a more recent model which is still in the process of formal evaluation and acceptance by the USEPA. Dispersion modelling is often a requirement for attaining Air Permits and Certificates of Approval . LEHDER applies modelling expertise in this area for a wide range of clients. Modelling for proactive self-assessment is another area LEHDER excels in, allowing clients to identify potential problems before they arise and to employ appropriate solution development.

58. Air Dispersion Modeling air dispersion modeling Suppliers from the largest worldwide directory of suppliers, The Industrial Resource Network. air dispersion modeling Suppliers. http://www.powersourcing.com/se/airdispersionmodeling.htm

Air Dispersion Modeling Suppliers From the largest world-wide directory of suppliers, The Industrial Resource Network These are just a few of our Air Dispersion Modeling suppliers. We have over 30,000 suppliers in our database. Go to The Industrial Resource Network home page - PowerSourcing.com Air Dispersion Modeling Suppliers

59. Risk Management Technologies A firm located in Chennai, India offering HAZOP training and software; air dispersion modeling; failure and reliability analysis; risk assessment; and accident investigation all targeted for the chemical process industries. http://xlweb.com/rmt/index.htm

60. RockWare- ISC-AERMOD View: Air Dispersion Modeling Software ISCAERMOD View air dispersion modeling software. AERMOD is the next generation air dispersion model which incorporates planetary boundary layer concepts. http://www.rockware.com/catalog/pages/iscaermod.html

Sample screen shots Overview ISC-AERMOD View is a complete and powerful Windows air dispersion modeling system which seamlessly incorporates 3 popular U.S. EPA models into one interface: ISCST3, AERMOD and ISC-PRIME. The Industrial Source Complex - Short Term regulatory air dispersion model ( ) is a Gaussian plume model and is widely used to assess pollution concentration and/or deposition flux on receptors, from a wide variety of sources. AERMOD is the next generation air dispersion model which incorporates planetary boundary layer concepts. Further information about this model can be found by clicking here The Industrial Source Complex - Plume RIse Model Enhancements ( ISC-PRIME ) dispersion model is similar to the ISCST3 model but contains enhanced building downwash analysis. Features ISC-AERMOD View has an integrated modeling environment : intuitive data input, model run, and full featured post-processing, with automatic gridding, blanking, contour plotting, and posting of your results. Graphical input , where you can use your mouse to graphically define the location of stacks, receptor grids, discrete receptors, and the plant boundary.

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