2024 Yes Evaluation of VOC concentrations in indoor and outdoor microenvironments at near-road schools https://www.sciencedirect.com/science/article/abs/pii/S0269749117303561?via%3Dihub Raysoni, Amit U. North America Review Modeling Elementary (K-5) Volatile Organic Compounds (VOCs) Air quality monitoring Volatile organic compounds (VOCs) Btex School Passive samplers A 14-week El Paso study found higher outdoor BTEX VOCs at high-traffic schools and higher indoor VOCs from sources like cleaning products. Indoor and outdoor VOC profiles differed by source, with overall BTEX trends showing long-term regional decline. 2017