Mobile Mapping of Urban Methane Emissions in Montreal (2019–2024)

This dataset contains raw, processed, and auxiliary data collected as part of a four-year mobile methane measurement campaign in Montreal, Canada, covering 2019, 2022, 2023, and 2024. The goal of the project was to identify and quantify methane emission hotspots from landfills, natural gas infrastructure, and other urban sources, and to inform spatially resolved emissions assessments for urban climate mitigation.Measurements were collected using vehicle-mounted gas analyzers, and emissions were estimated using a Gaussian plume inversion model.