Cataloging Information
Human Dimensions of Fire Management
Smoke & Air Quality
Wildland Firefighter Health
Wildland fire smoke has long been recognized as primarily a mixture of gases and particulate matter with the potential to impact air quality and human health. New research has revealed that smoke also carries elevated concentrations of viable microbes (bacteria and fungi) that have the potential to travel substantial distances from fire sources. Understanding smoke microbial emissions is critical for assessing risks to wildland firefighters and smoke-affected populations, as well as evaluating the ecological implications of fire-driven microbial dispersal. This research brief dives into the recent collaborative pyraoerobiology research led by the University of Idaho, which 1) provides the first quantifications of microbial concentrations and emission factors for wildland fire smoke, 2) examines microbial composition patterns across smoke plumes, 3) establishes that smoke-borne fungal pathogens retain their capacity to cause disease, and 4) demonstrates that fire likely serves as a significant mechanism for long-distance microbial transport.