Pregnant women exposure to pollution linked to risk of asthma

Pregnant women exposure to pollution linked to risk of asthmaA new research study has shown that exposure to air pollution during pregnancy might be linked to the risks of asthma for the babies.

The research showed that babies who were born to mothers, who were exposed to air pollution during their pregnancy, have a higher risk of developing asthma before the age of six. The new research by researchers from University of British Columbia based in Vancouver in west Canada warned the babies are exposed to danger if expectant mothers breath in area affected by air pollution.

Hind Sbihi, from UBC' s School of Population and Public Health and lead author, said, that the study shows evidence of danger of exposure to pollution to expectant mothers and unborn babies. The team studied physician-diagnosed asthma cases and also assessed the mother' s exposure to air pollutants during pregnancy.

The analysed mostly pollutants caused by traffic including black carbon, fine particulate matter, nitrogen dioxide, and nitric oxide. The team found that children, whose mothers lived close to highways during pregnancy, had a 25 percent increased relative risk of developing asthma before the age of five years.

"Air pollution from traffic sources increased the risk of developing asthma during early years before children reach school age, even in an urban area like Vancouver with relatively low levels of air pollution," Hind said in a statement.

The study included more than 65,000 children in Metro Vancouver. The research followed them till the age of 10 years in one of the largest study of its kind in the world.