2024 No Evaluation on exposures to particulate matter at a junior secondary school: a comprehensive study on health risks and effective inflammatory responses in Northwestern China https://pubmed.ncbi.nlm.nih.gov/29019007/ Xu, H. Asia Review Students Middle/Jr High (6-8) Ventilation rates Temperature Humidity Carbon Dioxide (CO2) Particulate Matter (PM) Black carbon Respiratory symptoms BC and PAHS Cancer risks Feno Health assessment Northwestern china Particulate matter (PM) In a Xi’an school, indoor and outdoor PMs, PAHs, and black carbon were linked to combustion sources. Cancer risk estimates from PAHs exceeded thresholds. Respiratory inflammation tests showed elevated FeNO in some students, indicating health concerns. 2017