2024 No Children's well-being at schools: Impact of climatic conditions and air pollution https://pubmed.ncbi.nlm.nih.gov/27258661/ Salthammer, T. Multiple Countries Review Students Elementary (K-5) Middle/Jr High (6-8) High School (9-12) Ventilation rates Temperature Carbon Dioxide (CO2) Carbon Monoxide (CO) Particulate Matter (PM) Volatile Organic Compounds (VOCs) Thermal comfort Ventilation Carbon dioxide (CO2) Indoor chemistry Exposure in classroom Guideline values This review highlights poor air quality in classrooms due to overcrowding, inadequate ventilation, and pollution. Despite strong evidence and proposed solutions, implementation lags due to budget, regulation, and awareness barriers. Global action is needed. 2016