Effect Of Ambient Ozone Exposure Assessed By Individual Monitors On Nasal Function And Exhaled No Among School Children In The Area Of Thessaloniki, Greece

Objectives:The study of short-term effects of environmental ozone exposure on nasal airflow, lung function, and airway inflammation.Methods:Ninety one children47 underwent rhinomanometrywere included. The study was carried out during the 2013 to 2014 academic year. Activity questionnaires and personal O-3 samplers were distributed and 1 week later, respiratory measurements were performed. Daily measurements of outdoor ozone were also considered.Results:A 10g/m(3) increase in weekly personal ozone exposure concentrations was associated with a non-statistically significant 12.7% decrease in nasal inspiratory airflow (29.4% during the high ozone period). When the outdoor exposure of the same and the previous day were taken into account the corresponding figures were 13.48% and 43.58% (P=0.02).Conclusions:There is an indication for increased risk of nasal obstruction during exposure to high ozone.