Wearable Devices Track Postwildfire Indoor Exposures

Researchers led by Krystal Pollitt at Yale deployed silicone wearable passive air samplers to 30 Los Angeles-area homes between February and April 2025 to profile chemical exposures following the LA wildfires. They found combustion-related volatile and semivolatile chemicals persisted indoors for months, with indoor levels often exceeding outdoor concentrations, informing remediation and biomonitoring efforts.