2024 Yes Characteristics of school children's personal exposure to ultrafine particles in Heshan, Pearl River Delta, China - A pilot study https://www.sciencedirect.com/science/article/pii/S0160412019312231 Mazaheri, Mandana Asia Observational Modeling Students Elementary (K-5) Particulate Matter (PM) Ultrafine particles Personal exposure School children Indoor air quality Indoor exposure Second-hand smoking Personal UFP exposure was measured in 24 children in Heshan, China. Indoor home exposure, driven by smoking and mosquito coils, was highest. Results highlight the need for interventions to reduce second-hand smoke and improve indoor air quality. 2019