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flag Prenatal wildfire smoke exposure, especially in third trimester, linked to higher autism risk in children.

flag A new study ties prenatal exposure to wildfire smoke—especially in the third trimester—to a higher autism risk in children, finding a 10% to 23% increased likelihood with 1–5, 6–10, and over 10 smoky days, respectively. flag Analyzing over 200,000 Southern California births from 2006 to 2014, researchers linked the risk to PM 2.5 particles in smoke, which can enter the bloodstream and affect brain development. flag While not proving causation, the findings add to evidence that air pollution may contribute to autism, which affects 1 in 31 U.S. school-aged children. flag Experts stress the need for stronger air quality regulations and further research.

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