Clearing the air: dispersion modelling for a mining facility.
Iodine and hydrogen-fluoride emissions risked exposure to nearby communities and schools. Modelling-led mitigation cut peak concentrations by 60%.
The facility’s iodine and hydrogen-fluoride releases created exposure risks for sensitive receptors including residential neighbourhoods and educational institutions. Regulatory pressure intensified under the Royal Commission Environmental Regulations (RCER-2015) and NCEC oversight.
Ambient conditions in the area were already compromised by industrial PM2.5 and SO₂ concentrations — complicating any pollution-management strategy.
The team conducted baseline environmental assessments using local meteorological and monitoring data, then deployed AERMOD dispersion modelling to simulate pollutant behaviour across multiple scenarios — with Saudi air-quality standards built into the evaluation.
Mitigation recommendations centred on best-available technologies: high-efficiency scrubbers, optimised stack configurations, and native vegetation buffers aligned with the Saudi Green Initiative’s afforestation mandate. Engagement with local communities and regulators ensured transparency from the start.
Post-mitigation modelling demonstrated a 60% reduction in peak pollutant concentrations and achieved regulatory compliance. Green buffer zones contributed directly to SGI afforestation targets while rehabilitating degraded land. A long-term IoT monitoring system at key locations now sustains compliance and supports adaptive management.