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Beijing, November 6 Exposure to outdoor sources of pollution, such as vehicle exhaust gases, and industrial emissions may increase the risk of developing autism spectrum disorder in humans. child up to 78%, warned a study.
Research followed Shanghai children from birth to three years to understand the effects of exposure to fine particles (PM2.5).
The study included 124 children with ASD and 1,240 healthy children in stages over a nine-year period, examining the link between air pollution and ASD.
The study, published in the journal Environment International, first examines the effects of long-term exposure of air pollution on ASD during the early childhood of a child in a developing country, adding to previous studies that had previously linked prenatal air exposure to ASD pollution in children.
"The causes of autism are complex and are not fully understood, but environmental factors are increasingly recognized, in addition to genetic and other factors," said Zhiling Guo, of L & 39. Chinese Academy of Sciences.
"The developing brains of young children are more vulnerable to toxic exposures in the environment and several studies have suggested that this could affect the functioning of the brain and the immune system," Guo said.
"These effects may explain the close relationship we have found between exposure to air pollutants and ASD, but more research is needed to explore the badociations between air pollution and mental health in a broader sense. ", did he declare.
Air pollution is a major public concern and it is estimated that it would cause up to 4.2 million deaths (WHO) each year worldwide. External pollutants contribute to a heavy burden of disease and premature death in countries such as China and India, especially in densely populated areas.
According to badociate professor Yuming Guo, of Monash University in Australia, global air pollution is worsening rapidly and there is no safe level of exposure.
"The serious effects of air pollution on health are well documented, which suggests that there is no safe level of exposure.Even the exposure to very small amounts of fine particles has been linked to premature births, learning delays and a range of serious diseases. " health conditions, including heart disease, "said Guo.
The study examined the health effects of three types of particulate matter (PM1, PM2.5, PM10) – airborne fine particles that are byproducts of factories, automobile pollution, construction activities and dust of the road.
The smaller the particles in the air, the more they are able to enter the lungs and enter the bloodstream, resulting in a range of serious health problems.
PM1 particle size is the smallest, but few studies have been done on PM1 on a global scale and agencies have not yet set safety standards. MHN
MHN
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