Post-Fire Dashboard Adds Blood Lead Testing Results for LA County Residents

Health officials in Los Angeles County are now tracking blood lead levels in residents affected by Southern California wildfires. The data appears on an updated dashboard prepared by USGS.

The Los Angeles County Post-Fire Air, Soil, and Water Assessment Dashboard includes blood lead monitoring results through October 2025. The information comes from the Los Angeles County Department of Public Health.

USGS summarized eight key updates since mid-September. The updates cover testing in both the Eaton and Palisades fire areas.

Chapman University conducted residential soil testing from February through April, Caballero wrote. Researchers tested lead levels in soil from 20 properties in and around the Eaton Fire area.

The U.S. Army Corps of Engineers monitors air quality daily around cleanup sites. Testing occurs in both fire zones.

Multiple agencies contributed results. They include the California Department of Public Health, UCSF, and Caltech.

CDPH and UCSF identified chemicals in indoor dust and outdoor ash, according to Caballero. Caltech added links to the PHOENIX air quality map.

Community Action Project Los Angeles expanded testing to include pool water quality. The collaborative also monitors air and soil.

Charles White Park in Altadena underwent soil testing in September. The work involved the LA County Department of Parks and Recreation and Mayfield Environmental Solutions.

The dashboard updates continually as new results become available. Officials encourage residents to check regularly for changes.