Dispersion Modelling
What It Is
Dispersion Modelling uses advanced computer simulations using ADMS6 to predict how emissions from your site (such as air pollutants, odour, or dust) will disperse in the atmosphere under different weather and operating conditions. It provides evidence for planning applications, Environmental Permits, and compliance with air quality regulations.
Why It Matters — Risks Without It
- ❌ Refusal of planning permission or Environmental Permit
- ⚠️ Enforcement action if emissions exceed safe levels
- 📣 Objections from local communities and statutory consultees
- 🧾 Costly redesigns or additional controls required late in the project
What’s Measured
- Pollutant concentrations (e.g. NO₂, PM10, PM2.5, SO₂, VOCs)
- Ground-level and short-term vs long-term exposure impacts
- Odour and dust dispersal patterns
- Effects on sensitive receptors such as residents, schools, hospitals, and nature sites
- Compliance with Air Quality Standards, EA, and Defra guidance
How It Works
- Data Collection: Gather emission rates, stack parameters, site layout, and meteorological data.
- Model Selection: Apply recognised models (e.g. ADMS, AERMOD, SCAIL) depending on site and requirements.
- Simulation: Run dispersion modelling scenarios to predict pollutant spread and concentrations.
- Assessment: Compare outputs against air quality standards and regulatory thresholds.
- Reporting: Provide clear, regulator-ready results with maps, charts, and mitigation advice if needed.
Who It’s For
- 🏭 Industrial operators applying for Environmental Permits
- 🏗️ Developers needing air quality evidence for planning applications
- 🏢 Consultants supporting Environmental Impact Assessments (EIAs)
- 🌍 Local authorities assessing potential impacts on communities
What You Get
- 📄 A regulator-compliant dispersion modelling report
- 📊 Maps, contour plots, and charts of pollutant concentrations
- 🧠 Expert interpretation and mitigation recommendations
- ✅ Evidence to demonstrate safe, compliant site operations
See the bigger picture: Dispersion Modelling shows how your emissions behave in the real world — providing the evidence regulators and planners need to approve your project.
