Phy.org - Science: Environment: Air Quality: Products and Services: Consultants

Air Compliance Testing, Inc. - Stack testing (EPA industrial air pollution testing), OSHA air compliance monitoring (Industrial Hygiene testing).
Air Quality Consultants, Ltd - Offering air quality services for local authorities, developers, and industry, mainly in the UK. Expert witness at public inquiries. Bristol, England.
Air Resource Specialists, Inc. - Provides air pollution monitoring and consulting services for industry and government.
Air Tox Environmental Company - Offers expert air quality management services, continuous emission monitoring, and regulatory compliance support in the United States. Based in Connecticut.
AirNova, Inc. - Services include stack testing, stationary source isokinetic sampling, continuous emission monitoring, compliance permitting, air toxics pollution emission sampling, ambient air quality dispersion modeling.
Airzone One - Specialists in air quality testing and consulting. Services include indoor and ambient air quality issues in residential and commercial buildings. Mississauga, Ontario, Canada.
Analytical Testing Consultants Corporation - Provides quality air testing services and efficient answers to a vast array of air pollution problems.
Applied Environmental Consultants, Inc. - Consultants located in Tempe, Arizona, USA who provide air dispersion modeling in support of air quality permitting and impact analyses as well as air quality regulatory compliance.
AQ Testing Services LLC - Licensed mold assessment consulting firm offering inspection, mold identification and air quality testing services for commercial, residential and marine structures.
ARI Environmental, Inc. - Provides expert air emission testing services for industrial clients in the USA and Canada. These include source emissions and fugitive emissions testing and consulting. Offices in Houston, TX, and Chicago, IL, USA.
Atlantic Environmental Inc. - Environmental testing and consulting company with experts in indoor air quality, ergonomics, industrial hygiene, safety, and environmental property assessments. Offices in New York, Atlanta and Chicago.
Beaulier Dust Control - Consulting engineers in ventilation, dust control and pneumatic conveyor in various industrial sectors, including metallurgy, chemical, plasturgy, mining, transformation, wood and forest.
CETCON (Combustion and Environmental Testing Consultants - Comprehensive environmental source emission testing services for the gas processing, petrochemical, electric utility, pulp and paper, and general manufacturing industries. Tulsa, Oklhahoma.
Clean Air Engineering - Environmental engineering, air testing, test equipment rental, EPA testing, stack testing, organics testing and particulate testing company.
ClearSky Engineering - ClearSky Engineering provides air quality related consulting services including emission inventory development, GHG verification and NPRI reporting.
Custom Stack Analysis, LLC. - Has been offering stack emissions testing services worldwide for over 30 years.
DRUMAir - Air sampling consultants. Provides aerosol sampling, service contracts, field staff training, custom software development, data processing, equipment sales and a full line of DRUM sampler products.
Emission Technologies - Offers air quality testing and emissions monitoring, modeling, and permitting. Based in the U.S.
Emisstar LLC - Provides consulting services focused on the scientific, technology, policy, business and public health challenges surrounding mobile air emissions.
Entech Northwest - Entech Northwest specializes in air quality consulting, environmental assessment solutions and management for air pollution and noise issues for the transportation and manufacturing sectors.
EnviroMet - Consulting firm located in Cherry Hill, New Jersey, USA, whose services include air permitting, air dispersion modeling, emissions estimation, site evaluations, regulatory analysis, and human health and ecological risk assessments.
Environmental Compliance - UK environmental consultants provides a specialist range of consultancy, measurement, monitoring and training services to clients operating in a broad range of industrial sectors.
Environmental Consulting Services - Consultancy specialising in environmental management systems, emission monitoring, training, support, analytical services and health and safety.
EnviSolutions - Consultants offering environmental engineering and monitoring services, training and related legal services. Portuguese and English.
Epsilon Associates: Air - An environmental engineering company based in Maynard, Massachusetts, whose services include a wide range of air quality services for power, industrial and institutional clients.
ETS Inc. - Air quality consulting firm, specializing in air emissions control, measurement, training, design, troubleshooting, and regulatory services. Roanoke, Virginia.
G1 Development, LLC - Specialist air and noise pollution control consultants. The air pollution business focuses on consulting engineering services and product supply for industrial emissions including CO, HC, NOx, soot, particulates and odors especially diesel engine exhaust.
Greene Filtration Consulting - Filtration and environmental consulting for industrial applications.
Henderson Paddon & Associates, Ltd. - A consulting engineering firm headquartered in Owen Sound, Ontario, Canada, whose environmental services include outdoor and indoor air quality monitoring and noise polution.
Liaise Environmental, Inc. - Environmental consulting firm specializing in air quality and regulatory compliance
M.J. Bradley & Associates - A strategic environmental consulting firm dedicated to air quality issues, energy policy, climate change, electric vehicles, renewable energy, fuel cells and emission credit management.
Minnich and Scotto, Inc. - Scientifically based, environmental consulting firm, provides specialized air quality and meteorological services to industry and government.
Northern Environmental and Monitoring Services (NEMS) - An environmental consultancy providing specialist services to industry including air quality and stack emission monitoring, contaminated land surveys, noise assessment, environmental impact assessment and ISO14000 management systems and audits.
O'Shea Environmental Associates, Inc. - Full-service environmental consulting firm with an expertise in air quality control, permitting, reporting and greenhouse gas concerns.
OdourNet - An international group of environmental consultants dedicated to the specialist field of odour assessment, advice on managing odour annoyance and odour abatement.
OMNI Environmental Services, Inc. - An air quality services and engineering consulting firm which develops and implements environmental strategies for air pollution control, including air monitoring, assessment and control system evaluation and development.
RTI International - A research, development and consulting company headquartered in North Carolina, USA with offices worldwide. Provides details of their air quality research.
Trinity Consultants - Offers consulting, software, and training in air quality, including dispersion modeling, permitting, and compliance assessments. Dallas, Texas.
V&C Environment Consultants Pty Ltd - Environmental consulting services based in Melbourne Australia - Service include ISO 14001 development, EMS and risk auditing, training, licence applications and air dispersion modelling.
Wondermakers Environmental - Provides consulting and training services relating to air quality assessments. Also provides air and asbestos sampling equipment.

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