Indoor and Outdoor Volatile Organic Compound Levels during and after the 2025 Los Angeles Wildfires
University of California, Los Angeles
Abstract
The January 2025 Los Angeles wildfires released large amounts of air pollutants and exposed millions of residents to smoke containing hazardous volatile organic compounds (VOCs). To assess exposure risks, we conducted indoor and outdoor VOCs sampling at 22 households near the Palisades and Eaton Fires across three phases: active burning with less than 50% containment (January 8–15), active burning period with more than 50% containment (January 24–31), and postfire (February 11–18). Outdoor benzene concentrations peaked during Phase 1, with a median (interquartile range) of 0.38 (0.27) ppb, decreased over time, and remained below the California Office of Environmental Health Hazard Assessment health benchmarks.…
Citation impact
- FWCI
- 110.57
- Percentile
- 100%
- References
- 23
Authors
7Topics & keywords
- Hazardous waste
- Air quality index
- Volatile organic compound
- Air pollution
- Smoke
- Indoor air quality
- Pollutant
- Health hazard