There seems to be a significant link between the Air Quality Index (AQI) with an increase in asthma exacerbations that often require hospitalisation among children. A recent study by a team of medical scientists led by Franziska Rosser, assistant professor of pediatrics in the division of pulmonology at UPMC Children’s Hospital of Pittsburgh, used medical records from 2010 to 2018 for children aged 6 to 17 years with an asthma exacerbation to find that each 10-unit increment in the overall AQI was associated with increased odds of asthma exacerbation. They also found that the black children had more exacerbation events compared with white children (65% vs. 31% of events).