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Air Pollution Linked To Risk of Childhood Autism
Exposure to fine particulate air pollution during pregnancy through the first two years of a child's life may be associated with an increased risk of the child developing autism spectrum disorder (ASD), a condition that affects one in 68 children, according to a University of Pittsburgh Graduate School of Public Health investigation of children in southwestern Pennsylvania.
"Autism spectrum disorders are lifelong conditions for which there is no cure and limited treatment options, so there is an urgent need to identify any risk factors that we could mitigate, such as pollution," said lead author Evelyn Talbott, Dr.P.H., professor of epidemiology at Pitt Public Health. "Our findings reflect an association, but do not prove causality. Further investigation is needed to determine possible biological mechanisms for such an association."
Dr. Talbott and her colleagues performed a population-based, case-control study of families with and without ASD living in six southwestern Pennsylvania counties. They obtained detailed information about where the mothers lived before, during and after pregnancy and, using a model developed by Pitt Public Health assistant professor and study co-author Jane Clougherty, Sc.D., were able to estimate individual exposure to a type of air pollution called PM2.5.
"There is increasing and compelling evidence that points to associations between poor air quality and health problems, especially those affecting our children and including issues such as autism spectrum disorder and asthma," said Grant Oliphant, president of The Heinz Endowments. "While we recognize that further study is needed, we must remain vigilant about the need to improve our air quality and to protect the vulnerable. Our community deserves a healthy environment and clean air."
Source፡-sciencedaily.com (prepared by science and technology information center)