Public health experts warn about pollution from burned plastics in LA fires

After thousands of homes and businesses burned in the Los Angeles fires, public health doctors are warning about the toxic pollution from plastics used in construction. Many building materials are made from plastics, including flooring and carpeting, floor sealants, siding, insulation, paints, and plumbing.

Kaya Allan-Sugerman, director of health and environment programs with the group Physicians for Social Responsibility Los Angeles, said the toxic chemicals found in urban wildfire smoke have been linked to respiratory and developmental conditions, hormone disruption, and even cancer.

“Plastics don’t just burn,” she said. “They release some of the most toxic chemicals. When released, these pollutants don’t just disappear. They can travel distances in the ash and they settle in the air, water and soil, contaminating entire communities.”

Experts recommend using an air purifier or HVAC system with a HEPA filter inside, and wearing an N-95 mask outside if you’re downwind of the fire zones. If you help clean up toxic ash, use gloves and avoid dry sweeping, which stirs ash into the air. Use wet methods or a HEPA vacuum instead, she suggested.

Allan-Sugerman said when rebuilding, people should choose safer, nonplastic materials wherever possible in order to promote public health, fire safety and environmental quality.

“We need stronger regulations on toxic building materials, and investment in sustainable fire resistant construction, because the more we use plastics in our buildings, the more we set ourselves up for long-term harm, especially as wildfires become more frequent and intense, given climate change,” she explained.

She added that websites such as Habitablefuture.org can help homeowners find alternatives to plastic in building materials.

Written by Suzanne Potter.

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