2024 Yes Interventions for improving indoor and outdoor air quality in and around schools https://www.sciencedirect.com/science/article/pii/S0048969722069133 Rawat, Nidhi Europe Exposure Modeling Particulate Matter (PM) Filtration Black carbon Classroom pollution School interventions Children exposure Exposure reduction Citizen science Classroom ventilation School-based interventions reduce air pollution exposure: air purifiers remove up to 70% PM1; HVAC with filters up to 97% BC; green infrastructure cuts pollutants up to 77%; clean fuels reduce tailpipe emissions 94%. Combined methods are more effective; further research needed. 2023