"A new study of more than 200,000 children in southern California found a link between exposure to wildfire smoke in mothers and higher rates of autism in children. The causes of autism are not fully known and likely multifaceted, but the new research builds on existing evidence that air pollution may be tied to autism. The study, published on Tuesday in Environmental Science & Technology, analyzed data for children born in the wildfire hot spot from 2006 to 2014."
"The more smoke days that mothers were exposed to, the higher the likelihood that their children would be diagnosed as autistic: women who were exposed to between six and 10 smoke days were 12 percent more likely to have a child who received such a diagnosis by age five, while this was 23 percent more likely among those who were exposed to more than 10 smoke days."
Analysis of more than 200,000 children born in southern California from 2006 to 2014 found associations between prenatal wildfire smoke exposure and increased autism diagnoses by age five. Pregnant women in their third trimester exposed to one to five smoke days had about an 11 percent higher likelihood of having a child diagnosed as autistic by age five compared with no exposure. Exposure of six to ten smoke days corresponded to a 12 percent increase, and more than ten smoke days corresponded to a 23 percent increase. The findings do not establish causation, and autism likely arises from both environmental and genetic factors.
Read at www.scientificamerican.com
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