This study offers integrated socio-spatial assessments of the mitigation of diffuse carbon dioxide degassing risk associated with Mazuku. The paper reveals how locally developed practices shape household perceptions of safety in Goma’s volcanic environment. The analysis advances community-centred, co-created risk governance for diffuse volcanic gas hazards. These findings provide a novel Global South perspective that bridges social perception with hazard monitoring, informing more inclusive and context-responsive strategies for managing persistent volcanic CO₂ risks.