FINN-WUI: Structure-burning emissions from wildland–urban interface fires across the conterminous United States, 2000–2020 (per-fire estimates)

We combine geospatial estimates of combustible material (Combustible mass of the building stock in the conterminous United States (COMBUST); Uhl et al., 2025) and high-resolution building count data to reconstruct structure fuel loads over two decades. Fire incident data from the all-hazards dataset mined from the US National Incident Management System (ICS-209-PLUS), paired with fire perimeters from the Monitoring Trends in Burn Severity (MTBS) database of large fires, enable event-level attribution of structure loss (including structures destroyed and damaged). These structural parameters are linked with emission factors compiled by Holder et al. (2023) to estimate pollutant release. This dataset is described in more detail in the paper entitled "Emissions from burned structures in wildfires as significant yet unaccounted sources of US air pollution", which can be found at: https://www.nature.com/articles/s41467-025-66292-9