2024 Yes Indoor Air Quality Levels in Schools: Role of Student Activities and No Activities https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7559628/ Settimo, Gaetano Europe Modeling Particulate Matter (PM) Nitrogen Dioxide (NO2) Carbon Dioxide (CO2) Volatile Organic Compounds (VOCs) Temperature Humidity Indoor air quality School Students Carbon dioxide (CO2) Volatile organic compounds (VOCs) fine particulate matter (PM2.5) Denuder PCA Risk This study presents a school IAQ monitoring method measuring chemical (PM2.5, NO2, CO2, VOCs) and physical (temperature, humidity) parameters during school and non-school times, enabling evaluation of student exposure and pollutant source identification. 2020