Integrating Multi-Tier Tree Walls for Sustainable Dust Control in Mining Operations

Abstract: This study evaluates multi-tier vegetative barriers as a sustainable approach to dust control in mining operations. Through a synthesis of peer-reviewed literature and field studies, we analyse dust suppression mechanisms, species-specific performance, and optimal design parameters, including canopy density and barrier alignment with prevailing winds. Findings show that well-designed vegetative barriers can reduce airborne particulate matter, including hazardous PM2.5 and PM10, by up to 84% compared to unmanaged sites, effectively mitigating dust dispersion at mine boundaries. The study highlights the role of species with high leaf surface roughness and trichome density in enhancing dust capture and provides guidelines for barrier layout. Beyond air quality improvement, these barriers support environmental restoration, carbon sequestration, and ecosystem health. Practical recommendations are offered for implementing vegetative barriers in mining environments, alongside directions for future research

Keywords: dust suppression, vegetative barrier, mining operations, air quality, multi-tier vegetation, canopy density, species selection, dust mitigation, PM2.5, PM10, environmental restoration, carbon sequestration