13 Mar 2008
Chemicals found in many household cleaning products could be one of the common causes of childhood asthma, a study claims.
Researchers found that mothers who used household cleaning products such as air freshener and bleach during pregnancy or after birth were more likely to have children who wheezed or suffered from asthma.
Children exposed to chemicals in the products showed a 41 per cent higher risk of wheezing by their seventh birthday, the study at Bristol University in the UK found.
The research, published in the European Respiratory Journal, looked at more than 7,000 families.
It suggests that fumes called volatile organic compounds (VOCs) could be to blame, however researchers concluded that they were not yet completely certain of the link.
"We think that is perhaps due to irritant effects of the chemicals on the child after birth, which may cause inflammation of the airways leading to development of asthma," the study's lead author John Henderson said.
"This research points to direct effects of chemical-exposure on lung development or irritation of the airways after birth."
According to recent figures from the Global Initiative for Asthma, over 30 million people in Europe now suffer from the respiratory condition.
One in four children in western Europe now requires emergency care every year due to their asthma.
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