2024 Yes Obesity May Enhance the Adverse Effects of NO2 Exposure in Urban Schools on Asthma Symptoms in Children https://doi.org/10.1016/j.jaci.2020.03.003 Permaul, Perdita North America Observational Epidemiological Students Elementary (K-5) Nitrogen Dioxide (NO2) Absenteeism Respiratory symptoms Asthma Obesity Body mass index (BMI) Inner-city Urban School Nitrogen dioxide (NO2) children Environment Exposure Indoor Pollutants Air In 271 inner-city children with asthma, obese students showed increased asthma symptoms linked to classroom NO2 exposure, unlike normal-weight peers. Results suggest obesity may heighten vulnerability to indoor pollution, though findings need further confirmation. 2020