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Wildfire Smoke Linked to Autism Risk
28 Oct
Summary
- Wildfire smoke exposure during pregnancy increases autism diagnosis risk.
- A 0.75 microgram/m3 increase raised autism risk by 30 percent.
- Medicaid enrollees' data revealed significant public health concerns.
Exposure to wildfire smoke during pregnancy has been linked to an increased risk of autism diagnoses in children, especially when exposure occurs in the second and third trimesters. This finding emerges from a substantial study involving 893,212 mother-child pairs across the United States.
The research, published in JAMA Pediatrics, analyzed weekly wildfire smoke concentrations and their correlation with autism diagnoses by age 8. For every 0.75 microgram-per-cubic-metre increase in fine particles from wildfires during pregnancy, a child's risk of an autism diagnosis rose by 30 percent.
While the study, focused on Medicaid recipients, cannot definitively prove causation, it suggests that pregnant women should be aware of air quality during wildfire events. Limiting outdoor time and following air quality guidelines are recommended, as wildfire smoke poses significant health risks due to its deep lung penetration and potential for systemic inflammation.
