Air Pollution's Hidden Impact on Autism Risk

A study suggests exposure to air pollution during late pregnancy or early childhood may increase autism risk. Researchers reviewed prior studies to reveal that pollutants like PM2.5 and nitrogen oxides can affect brain development. Autism is often linked to environmental factors, especially in genetically predisposed individuals.

Recent research indicates that exposure to air pollution during critical developmental periods may significantly increase the risk of autism in children, according to a new study. This study highlights the potential danger of common pollutants, such as fine particulate matter (PM2.5) and nitrogen oxides.

Autism, a neurodevelopmental disorder marked by repetitive behaviors and impaired social skills, might be more prevalent among children exposed to harmful pollutants. The study emphasizes the crucial timing of exposure, specifically during prenatal and early childhood stages.

The researchers from the Hebrew University of Jerusalem found that genetic predisposition could amplify the effects of pollution. Key biological mechanisms affected include nitrosative stress, inflammation, and oxidative stress, with pollutants like PM2.5 crossing the placenta, potentially affecting fetal brain development.

(With inputs from agencies.)