New Chinese research links have prolonged exposure to air pollution with a high risk of developing autism in children.
A team from the University of the Chinese Academy of Sciences, in partnership with the University of Birmingham (Great Britain) and McGill University (Canada), investigated the relationship between prolonged exposure air pollution i disorders of the autism spectrum (TSA) in children in developing countries.
The researchers examined 124 children with ASD and 1,240 children who were not (control group) at different times for a period of 9 years.
The study focuses on three topics: PM1, PM2.5 and PM10, fine particles suspended in air from factories, mufflers, construction activities and dust on the roads.
As the particles are larger, they enter the lungs more into the blood, where they cause many disorders.
PM1 is the best particle, followed by PM2.5 and PM10. Several studies have been conducted on these particles and there are several safety standards.
Published in Environmental International, the researchers' results show that it isexposure particles (PM2.5) from birth to three years would result in a risk development of TSA more 78%.
These findings are consistent with previous findings that link prenatal exposure to airborne diseases with ASD in children.
"Causes of autism are complex and still insufficiently understandable, but environmental factors are increasingly taken into account. They are apart from other factors, genetically"explains Professor Zhiling Guo, the author of this study."The development of the brain in early childhood is more susceptible to that exposure to the environment. Several studies suggest that this can affect the functioning of the brain and immune system. This could explain the discovered relationship between pollutants and ASDs. However, further research is needed to further explore the relationship between air pollution i mental health in general".
Associate Professor Iuming Guo of Monash University in Australia commented on these observations: "The serious health effects of air pollution are well known and there is no safety threshold for exposure. Even exposure to a small amount of tiny particles can lead to premature birth, delay in learning, and health problems, including heart failure".