Project Timeframe: 2005 to

This study linked existing databases to examine possible environmental factors related to autism. IAI researchers collaborated with the California Department of Public Health to compare estimated levels of Hazardous Air Pollutants (HAPs) at the time of birth in children later diagnosed with an ASD to those without autism. Utilizing data from the federal EPA on estimated levels for 19 HAPs that may affect early brain development. IAI found that children with ASD were approximately 50% more likely than other children to have been born in areas estimated to have elevated levels of metals or chlorinated solvents in outdoor air. Currently, IAI is working with other scientists to verify these results.