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Air quality

Industrial emissions
Impact studies and atmospheric dispersion modeling

Assess, visualize and control the impact of your atmospheric emissions on public health and air quality thanks to our environmental modeling expertise and monitoring tools.

OUR EXPERTISE

Industrial emissions: a complex issue to master

Are you working on an ICPE or SEVESO-classified site?
NUMTECH supports you in conducting air impact studies that comply with regulatory requirements.
Whether you want to anticipate your emissions or engage with stakeholders (DREAL, local authorities, nearby residents), our modelling expertise and software solutions guarantee reliable, actionable results.

Our offer

Our areas of intervention for industrial releases

Schéma de dispersion des rejets industriels

Comprehensive industrial atmospheric dispersion studies

  • ICPE regulatory files (creation, site modification)
  • Hazard and risk management studies
  • Technical sizing of installations
  • Evaluation of emission reduction systems
  • Pre-project compliance check
  • Identification of diffuse sources (via on-site measurements)
  • Assessment of the visual impact of releases
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Monitoring and modeling of industrial releases

Discover Plum’Air®, our reference software to:

  • Monitor your emissions in real time (every 15 minutes + automatic alerts)
  • Anticipate impacts through a forecasting mode
  • Respond effectively in the event of an accidental release: secure, inform, manage
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NUMTECH expertise

Our know-how: a quality guarantee

Amélioration continue des performances

Over 20 years of experience

Ingénierie expérimentée

Specialized engineers and PhDs

Allers-retours et itérations avec le client

Use of models validated by INERIS and the US EPA

Rayonnement et projets à l’international

Studies conducted in France and internationally

Air quality

Recognized expertise in pollutant modeling and management

  • Over 20 years of experience
  • Mastery of substances: gases, dust, odors, VOCs, PAHs, H₂S, NH₃...
  • Model expertise: ADMS, AERMOD, CALPUFF, Code_Saturne, CFD
  • Official ADMS distributor (France & French-speaking countries)
  • Certified training, responsive technical support
  • Recommendation of the most suitable model for your project
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Site industriel modélisé avec panaches de pollution
Logo Numtech


Steps

How does a dispersion study unfold?

Définition des objectifs d’étude
1. Define the objectives
  • Kick-off meeting
  • Assumptions note
Constitution de la base de données
2. Collect the data
  • Weather and topographic data: provided by NUMTECH
  • Site data: sources, emissions, buildings
  • Assumptions note validated with you
Simulations de dispersion atmosphérique
3. Simulations and modeling
  • Source parameterization
  • Computation setup
  • Run on our servers
Analyse et interprétation des résultats
4. Analysis and delivery
  • Delivery meeting
  • Maps and tables
  • Report drafting
Suivi, plan d’actions et reporting
5. Follow-up and support
  • Summary sheet
  • Communication document
  • Regulatory support

They trust us:

F. A. Q

Do you have any questions?

FAQ rejets industriels – questions fréquentes
On average, 2 weeks after receiving the complete dataset.
We master the usual models and datasets; very complex configurations may require specific assumptions or additional measurements.
Mainly: emission characteristics, source locations, buildings.
We master all regulatory models: AERMOD, CALPUFF, etc.
Rarely. Our tools and experience allow us to work remotely, except in specific cases.

Customer area


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