Air Dispersion Modelling and Noise Studies in Tunisia
Air dispersion modelling in Tunisia shows, before the ANPE (National Environmental Protection Agency) gives its opinion, that your stack emissions remain acceptable around the site. AHEC also models industrial noise, Mediterranean coastal hydrodynamics, groundwater and industrial risks, using recognised software. The results feed straight into your EIE (environmental impact assessment) and hazard studies.
Our services in Tunisia
01
Air dispersion modelling
5
Predicting concentrations around the site before you build or extend.
- Industrial emissions dispersion: point, area and volume sources
- Comparison with stack emission limit values (decree no. 2010-2519)
- Stack height optimisation
- Odours (wastewater plants, agri-food) and fugitive dust (quarries, cement plants, material handling)
- Software: AERMOD, CALPUFF, ADMS
02
Industrial noise and acoustic studies
5
Measuring today’s noise and predicting your future equipment’s.
- Day and night noise measurements at the fence line and at neighbours
- Industrial noise prediction and noise maps (ISO 9613)
- Construction and road traffic noise
- Noise barrier and enclosure design
- Software: SoundPLAN, CadnaA
03
Hydrodynamic and marine modelling
5
Ports, dredging, sea outfalls and Mediterranean coastal erosion.
- Currents, water levels and wave propagation
- Sediment transport, port siltation and dredging plumes
- Sea outfall dilution and thermal or brine plumes (desalination)
- Coastal erosion and sea-level rise
- Software: Delft3D, MIKE 21 / MIKE 3, Telemac
04
Industrial risk modelling
4
The effect zones your hazard study needs.
- Fire, explosion and toxic release (DNV Phast, ALOHA)
- Fire and smoke simulation (PyroSim)
- Quantitative risk assessment (QRA) and risk contours
- Bow-tie analysis (BowTieXP) and HAZOP / HAZID support (PHA-Pro)
05
Groundwater modelling
5
Aquifers, wells and soil contamination.
- Groundwater flow and aquifer characterisation
- Pumping tests and well fields
- Contaminant transport and remediation design
- Saltwater intrusion in coastal aquifers
- Software: MODFLOW, MT3DMS, FEFLOW, GMS
References in Tunisia
- Air dispersion modelling – EIA of the GCT / TIFERT wastewater treatment plant, Skhira, Sfax, 2026
- Hydrodynamic study – approaches to Menzel Bourguiba port, OMMP, Bizerte, 2026
Group experience: more than 500 projects delivered by AHEC in Saudi Arabia, where the group holds NCEC Class A classification. See group projects →
Frequently asked questions
When is air dispersion modelling needed?
When a project has significant stack emissions (boilers, kilns, furnaces) or is close to homes. The modelling is then included in the EIE to show the effect of emissions around the site.
What is an industrial noise study?
Day and night noise measurements around the site, then modelling of the future equipment’s noise, to check the impact on neighbours and define reduction measures (barriers, enclosures).
Which software do you use?
AERMOD, CALPUFF and ADMS for air; SoundPLAN and CadnaA for noise; Delft3D and MIKE for hydrodynamics; MODFLOW and FEFLOW for groundwater; DNV Phast and ALOHA for risk.
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A stack, a sea outfall or sensitive neighbours? Send us the site plan and source details: we propose the right model.
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