A new study appearing online today from The American Journal of Psychiatry finds that elevated pesticide levels in pregnant women are associated with an increased risk of autism among their children.
Autism is a complex neurodevelopmental disorder with largely unknown causes. It is characterized by problems with communication, difficulty relating to people and events, and repetitive body movements or behaviors. The study examined whether elevated maternal levels of persistent organic pollutants are associated with autism among children. Persistent organic pollutants are toxic chemicals that adversely affect human health and the environment around the world.
The study examined levels of DDE (p,p’-dichlorodiphenyl dichloroethylene), a breakdown product of the pesticide DDT (dichlorodiphenyltrichloroethane). Although DDT and other persistent organic pollutants were widely banned in many countries decades ago, they persist in the food chain, resulting in continuous exposure among populations. These chemicals transfer across the placenta, resulting in potential prenatal exposure among nearly all children because of existing maternal body burdens.
Read more at American Psychiatric Association