Even homes spared by flames face ongoing threats from hazardous ash and smoke, which pose health risks to residents for months after the fires.
L.A. Wildfires: The Hidden Hazards Beyond the Flames

L.A. Wildfires: The Hidden Hazards Beyond the Flames
As communities in Los Angeles recover from devastating wildfires, lingering toxic risks present serious health concerns.
Amid the chaos of wildfires in Altadena, California, resident Matthew Craig fought to protect his home with little more than two garden hoses hooked to a sputtering tap. He described the intense heat as akin to a dragon’s breath, all while smoke choked the air. Thankfully, his house stands intact; however, the aftermath is no less daunting. "Every room is coated in ash, soot and dirt,” said Craig, who expressed deep concern for his family's well-being. “We don’t want to live in a toxic wasteland.”
As residents start to return to their communities affected by the flames, they face a significant health risk. Experts warn that lingering smoke and ash—filled with harmful chemicals from various burned materials—are health hazards that persist long after the fires have been extinguished. A recent study highlighted that even homes not engulfed in flames can harbor hazardous particles that settle on surfaces, such as carpets and walls.
Colleen Reid, a researcher from the University of Colorado Boulder who examines air pollution's effects, emphasized the gravity of the situation. “While many families tragically lost their homes, those who are able to return may unknowingly expose themselves to numerous toxic substances,” Reid noted. "The wind sweeps these hazardous materials through every crack." As the community begins its recovery, residents must navigate the long-term impacts of the fires that extend far beyond the immediate destruction.
As residents start to return to their communities affected by the flames, they face a significant health risk. Experts warn that lingering smoke and ash—filled with harmful chemicals from various burned materials—are health hazards that persist long after the fires have been extinguished. A recent study highlighted that even homes not engulfed in flames can harbor hazardous particles that settle on surfaces, such as carpets and walls.
Colleen Reid, a researcher from the University of Colorado Boulder who examines air pollution's effects, emphasized the gravity of the situation. “While many families tragically lost their homes, those who are able to return may unknowingly expose themselves to numerous toxic substances,” Reid noted. "The wind sweeps these hazardous materials through every crack." As the community begins its recovery, residents must navigate the long-term impacts of the fires that extend far beyond the immediate destruction.