2024 No Effects of Allergen Exposure and Environmental Risk Factors in Schools on Childhood Asthma https://link.springer.com/article/10.1007/s11882-023-01108-8 Yarsky, Eva North America Review Students Elementary (K-5) Ventilation rates Ozone (O3) Nitrogen Dioxide (NO2) Dust Pests/Pesticides Radon Fungi Allergens Absenteeism Test performance Headaches pediatric asthma Schools Environmental exposures obstructive lung disease Cockroach, mouse, dust mites, fungi, infections, ozone, and cleaners may raise asthma morbidity in schools. Remediation strategies show promise, but more research is needed to assess modifiable risks and the impact of school mitigation efforts. 2023