Air pollution and childhood asthma emergency department visits in Brisbane between 2013 and 2015, a time-stratified case-crossover analyses – 2022

A study of asthma exacerbation emergency department visits in Brisbane suggests that the risk of childhood asthma exacerbations increases within a few hours of air pollution exposure in children aged 0-14, with the risk increasing within the same hour of exposure to O3, and 4 hours after exposure to NO2.
In the study, there was also an association between exposure to PM2.5 and PM10 in some age groups, with children aged 0-4 being more vulnerable to PM10 but less vulnerable to NO2 compared to school-aged children (5-14 years).