41. Morocco.com Discussion Forum - My Best Computer Programming Site: Get Info/free Morocco.com Discussion Forum Science and Technology/Sciences et TechnologiesDispersion Modeling of air dispersion modeling, Last Thread. Author, http://www.morocco.com/forums/showthread.php3?goto=lastpost&forumid=14

42. MMA Home Page An air quality consulting firm, headquartered in Englewood, Colorado, USA with other offices in Arizona and Wyoming. Their services include air dispersion modeling for determining ambient impacts for permitting industrial sources, impacts of cooling tower plumes, impacts of complex terrain on pollutant dispersion, mobile source impacts, and toxic air pollutant exposures. http://www.mcvehil-monnett.com/

McVehil-Monnett Associates, Inc. (MMA) is a specialized air quality and environmental management consulting firm. This web page does use frames and your browser may not support them. Some portions may not print.

43. RockWare- ISC-AERMOD View: Air Dispersion Modeling Software petroleum, environmental and academic geology communities. ISCAERMODView air dispersion modeling software. Sample screen shots. Overview. 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.

44. Meteorological Solutions Inc Air quality consultants (located in Salt Lake City, Utah, USA) who provide a comprehensive range of air dispersion modeling services. The site includes links to the specifics of their various services as well as to a listing of the names, email addresses, and experience of their key people. http://www.metsolution.com/

Contact our CCM's Dan Risch George Wilkerson Meteorological Solutions Inc. (MSI) is an air quality and meteorological consulting company with a strong emphasis on atmospheric measurements, weather forecasting, software development, dispersion modeling, air permitting and monitoring systems integration and installations. Meteorological Solutions Inc. employees consist of meteorologists and computer scientists. Our core group has worked together since 1985 and has over 120 years in air quality and meteorological consulting experience. For more information on our key staff members follow this link. Visit Our WeatherCam Timelapse New MSI WeatherView 2.2 Software - Monitoring Data Posted on the Web in Realtime! Now with Auto E-mail Alert. Real-time Upper Air/Mixing Height and Surface, Model-Ready, Meteorological Data Files Now Available! MSI Monitoring Van on Pennsylvania Avenue in Washington D.C. Services Downloads Information Request Contact Us ... Current Weather This web site was last updated on:

45. RockWare- ISC-AERMOD View: Air Dispersion Modeling Software environmental and academic geology communities. ISCAERMOD View airdispersion modeling software. The AERMOD model- a brief description. http://www.rockware.com/catalog/pages/iscaermoddesc.html

The AERMOD model- a brief description Back to the ISC-AERMOD home page Home Software Order Download ... Press ©2002 RockWare, Inc. - Last Updated:

46. Lakes Environmental - Risk Assessment And Air Dispersion Modeling Software Lakes Environmental Storefront. Download. Please, leave your addressdetails below, before you download the software demos. This data http://www.environmental-expert.com/software/lakes/form.htm

Home Prof. Services Publications Articles ... Directory Lakes Environmental Storefront Download Please, leave your address details below, before you download the software demos. This data will be only used to provide you with more follow-up information about Lakes Environmental Software Name: (*) Company: Address: (*) City: (*) Zip Code: (*) State/Prov: (*) Country: (*) E-mail: (*) boxes marked with (*) are obligatory.

47. 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.

48. 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

49. 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. Sharla Savage, EIT - Branch Manager, South Carolina Project Management, Regulatory Assistance, Air Pollution Control System Design, Air Compliance Strategy Development You may contact Sharla Savage at sharla@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 Sandy Hastings, CPA – Business Manager Marketing, Web Page Design, Business Management You may contact Sandy Hastings at sandy@hastingsengineering.com

50. Error Propagation In Air Dispersion Modeling Error Propagation In air dispersion modeling. Follow Ups Re Error Propagation Inair dispersion modeling Jack Clement 171551 12/09/98 (0) Post a Followup. http://www.rbca.com/wwwboard/messages/53.html

Error Propagation In Air Dispersion Modeling Follow Ups Post Followup RBCA WEB Board Version 2.0 Test FAQ Posted by Milton Beychok on October 28, 1998 at 23:15:11: If you want to learn about the accuracy of Gaussian air dispersion modeling, read the feature article at this website: ..... http://www.air-dispersion.com I hope you find it if interest. Milton R. Beychok 2233 Martin St., Unit 205 Irvine, CA 92612, USA Fundamentals Of Stack Gas Dispersion Follow Ups: Re: Error Propagation In Air Dispersion Modeling Jack Clement Post a Followup Name: E-Mail: Subject: Comments: : If you want to learn about the accuracy of Gaussian air : dispersion modeling, read the feature article at this : website: : ..... http://www.air-dispersion.com : I hope you find it if interest. : Milton R. Beychok : 2233 Martin St., Unit 205 : Irvine, CA 92612, USA Optional Link URL: Link Title: Optional Image URL: Follow Ups Post Followup RBCA WEB Board Version 2.0 Test FAQ

51. 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 CloudSource

52. Re: Error Propagation In Air Dispersion Modeling Re Error Propagation In air dispersion modeling. Follow Ups PostFollowup RBCA WEB Board Version 2.0 Test FAQ Posted http://www.rbca.com/wwwboard/messages/61.html

Re: Error Propagation In Air Dispersion Modeling Follow Ups Post Followup RBCA WEB Board Version 2.0 Test FAQ Posted by Jack Clement on December 09, 1998 at 17:15:51: In Reply to: Error Propagation In Air Dispersion Modeling posted by Milton Beychok on October 28, 1998 at 23:15:11: : If you want to learn about the accuracy of Gaussian air : dispersion modeling, read the feature article at this : website: : ..... http://www.air-dispersion.com : I hope you find it if interest. : Milton R. Beychok : 2233 Martin St., Unit 205 : Irvine, CA 92612, USA Good analysis. Have any regulatory agencies endorsed this. thanks Viru Follow Ups: Post a Followup Name: E-Mail: Subject: Comments: : : If you want to learn about the accuracy of Gaussian air : : dispersion modeling, read the feature article at this : : website: : : ..... http://www.air-dispersion.com : : I hope you find it if interest. : : Milton R. Beychok : : 2233 Martin St., Unit 205 : : Irvine, CA 92612, USA : : Good analysis. Have any regulatory agencies endorsed this. : thanks : Viru Optional Link URL: Link Title: Optional Image URL: Follow Ups Post Followup RBCA WEB Board Version 2.0 Test

53. 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

54. 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.

55. 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.

56. Problems Of The Environment - Air Dispersion Modeling - Emissions Español. CES Home. Problems of the Environment. Climate Change. FAQ. Feedback.Search. Problem(s) air dispersion modeling Emissions. Solution(s) http://strategis.ic.gc.ca/Ces_Web/_display_air_agriculture_prob_info_.cfm?proble

57. 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 1913 Hawthorne Lane Plano, TX 75074-5134 Facsimile Home Overview Workshops Info Web design and hosting by

58. EPA454R99021 AIR DISPERSION MODELING OF TOXIC POLLUTANTS IN URBAN Catalog Entry. air dispersion modeling OF TOXIC POLLUTANTS IN URBAN AREAS GUIDANCE,METHODOLOGY AND APPLICATIONS EPA Number 454R99021. NTIS number, PB99162950. http://yosemite.epa.gov/ncepihom/nsCatalog.nsf/EPATitle/F5E60B5C0CB1F7DF85256CB5

59. 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 Industrial Source Complex Short Term Model Version 3 (ISCST3). The ISCST3 is a Gaussian dispersion model that is capable of computing ground level concentrations at specific downwind receptors under a variety of meteorological conditions, emission scenarios and changes in topography. This model is the most widely used in North America and has been accepted by many jurisdictions as a regulatory model. Dispersion modelling is often a requirement for attaining Air Permits and Certificates of Approval. LEHDER applies modelling expertise in this area for a number 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.

60. 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

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