Data on perception of the implementation and effectiveness of local dry‑gas degassing measures in the Goma area (East DRC)

This dataset contains 574 household-level observations collected to assess community perceptions and local mitigation practices related to mazuku—areas of hazardous carbon dioxide diffuse degassing—in the western sector of Goma, located in the Virunga Volcanic Province (DR Congo). The data were generated through a mixed-methods design combining quantitative household surveys and qualitative interviews, conducted across three sampling zones representing different levels of exposure to CO₂ emissions. The dataset documents demographic characteristics, household experiences with volcanic and mazuku-related hazards, and detailed responses on the perceived implementation and perceived effectiveness of three locally recognised categories of mazuku mitigation measures: (1) emission-limiting measures (e.g., blocking gas pathways with waste materials), (2) adaptive measures (e.g., ventilation practices or occupying upper floors), and (3) awareness-based measures derived from orally transmitted local knowledge (e.g., avoiding mazuku areas early in the morning). Variables also capture socio-economic factors—such as income, gender, and duration of residence—that influence motivation and perceived efficacy of mitigation strategies. Spatial identifiers are included to allow comparison between sampling zones and enable analyses of geographical patterns in implementation and perceived effectiveness. This dataset provides a unique empirical foundation for understanding community-driven risk reduction practices associated with carbon dioxide diffuse degassing hazards in a rapidly urbanising Global South context. It is intended to support further interdisciplinary research on volcanic gas hazards, inform co-designed mitigation strategies with local communities, and encourage future integration of physical monitoring of mazuku concentrations with social perception data.本数据集包含574份家庭层面观测数据，旨在评估刚果（金）维龙加火山省（Virunga Volcanic Province）戈马西区与mazuku（二氧化碳危险弥散脱气区域）相关的社区认知及本地减灾实践。 该数据集采用混合研究方法生成，结合了家庭定量问卷与定性访谈，调研覆盖三个代表不同二氧化碳（CO₂）暴露等级的采样区域。 本数据集记录了人口统计特征、家庭遭遇火山及mazuku相关灾害的经历，以及针对三类当地公认的mazuku减灾措施的实施感知与效果感知的详细反馈：① 限排类措施（例如用废弃物封堵气体通道）；② 适应类措施（例如通风作业或居住于高层楼层）；③ 基于口传本地知识的认知类措施（例如清晨避开mazuku区域）。 数据变量还涵盖影响减灾策略实施动机与感知效力的社会经济因素，如收入、性别及居住时长。数据集包含空间标识字段，可用于采样区域间的对比分析，以及减灾措施实施与感知效果的地理分布模式研究。 本数据集为理解快速城市化的全球南方（Global South）背景下，与二氧化碳弥散脱气灾害相关的社区主导型减灾实践提供了独特的实证基础。其旨在支撑火山气体灾害相关的跨学科研究，助力与本地社区协同设计减灾策略，并推动未来将mazuku浓度的物理监测与社会感知数据相结合的研究工作。