Tuesday, 16 Oct 2018

Bangla Version

Ozone exposure at birth may up asthma risk

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Health Desk-- 23 May, 2018: A new study suggests exposure to ozone (O3), a common air pollutant, at birth may increase the risk of developing asthma by age three.

The study, presented at the 2018 American Thoracic Society International Conference, showed that 31 per cent of the participants developed asthma, 42 per cent had allergic rhinitis and 76 per cent had eczema, reports Ians.

Lead author Teresa To from The Hospital for Sick Children (SickKids) in Canada, “Our findings show that the hazard ratios for ozone measured at birth as a single pollutant showed statistically significant higher risks for development of asthma, allergic rhinitis and eczema”.

The study also found that 82 per cent higher risk of developing asthma was associated with each 10 parts per billion (ppb), or ppb increase in exposure to ozone at birth.

According to the researchers, children are at a higher risk because their lungs and other respiratory organs are smaller, and they spend more time in outdoor physical activities that make them breathe faster and more deeply.