A chemical analysis of residential soils and ash around California homes burned by the Eaton and Palisades wildfires in early 2025 revealed wide variation in contamination by potentially harmful elements, including lead, according to a study published in Environmental Science and Technology Letters on May 12. The researchers made their findings available to the Los Angeles Public Health Department over the course of the study.

A chemical analysis of residential soils and ash around California homes burned by the Eaton and Palisades wildfires in early 2025 revealed wide variation in contamination by potentially harmful elements, including lead, according to a study published in Environmental Science and Technology Letters on May 12. The researchers made their findings available to the Los Angeles Public Health Department over the course of the study.

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