Isaac Aguilar, a Caltech geobiologist, gestures toward a research poster on outdoor ash contamination from the 2025 Eaton Fire while presenting to attendees at an academic conference.
David Esquivel/UCLA
Isaac Aguilar, a doctoral student in geobiology at the California Institute of Technology, explains his team’s findings on contamination in outdoor ash in the Eaton burn zone, underscoring the complexity of urban wildfire emissions.