2024 No https://doi.org/10.1016/j.jaci.2024.06.020 Jung, Kyung Hwa North America Observational Epidemiology Study Exposure Study Students Elementary (K-5) Middle/Jr High (6-8) High School (9-12) Particulate Matter (PM) Nitrogen Dioxide (NO2) Respiratory symptoms Home environment School environment Combined home and school exposure Traffic-related air pollution Lung function Asthma severity Composite asthma severity index Asthma disparities Analyzing geospatial pollutant data and clinical outcomes, this study finds that children in historically redlined U.S. neighborhoods face higher NO₂ exposure and experience stronger links between PM₂.₅ exposure and asthma severity, underscoring the public health impacts of environmental injustice.