2021 No https://doi.org/10.1016/j.jclepro.2021.128460 Zhou, Yuhe Asia Exposure Study Modeling Students Elementary (K-5) Temperature Humidity Particulate Matter (PM) Indoor PM2.5 Symbolic regression Student behavior Indoor PM2.5 was monitored in primary classrooms in North China for one year. Symbolic regression models quantified the effect of student behavior on pollution spikes. Findings support managing activity patterns to reduce PM2.5 exposure in schools.