Autism risk doubled : Study links autism to air pollution

Autism risk doubled : Study links autism to air pollution

The causes of autism have been studied through various studies, and it seems that researchers have come to a conclusion that air pollution is one of the main causes.

Researchers from the Harvard School of Public Health found high levels of pollution may have doubled the autism risk in their study of 1,767 children.

In the analysis, 245 children had autism and 1,522 did not. Based on the mother’s home address, the researchers estimated the exposure the pregnant mother had to air pollution. They found that many children with autism also lived in high polluted areas.

Polluted air could be a factor in autism due to fine particulate matter, such as invisible specks of mineral dust, carbon and other chemicals. These chemicals can then be absorbed into the bloodstream via the lungs and further damage the brain or body.

The study was published in Environmental Health Perspectives but did not conclude that air pollution is a cause of autism, only a possible association. This is the fifth study to find a connection between air pollution and autism.