Fedele Alessia, Colantoni Andrea, Calabrò Giuseppe, Scungio Mauro, Rossi Stefano, Taborri Juri
Department of Economics, Engineering, Society and Business Organization, University of Tuscia, 01100 Viterbo, Italy.
Department of Agriculture and Forest Sciences, University of Tuscia, 01100 Viterbo, Italy.
Sensors (Basel). 2025 Mar 21;25(7):1970. doi: 10.3390/s25071970.
This study investigates indoor air quality (IAQ) and thermal comfort in Italian university classrooms, considering seasonal variations. Poor IAQ can impair students' cognitive performance and well-being, making ventilation strategies crucial. The aim is to assess CO levels, temperature, and humidity, analyzing their interactions across seasons. A monitoring protocol was applied in three classrooms using NDIR sensors and a microclimate assessment system. Sensors were placed strategically to capture representative data in 20 days in spring and autumn. Results indicate that CO levels peaked at 2324.2 ppm in autumn, significantly exceeding the 1000 ppm threshold, whereas spring levels remained below 953.4 ppm. Relative humidity ranged from 32.7% to 55.6%, with higher values in autumn. Temperatures varied from 19.1 °C to 27.5 °C, with warmer conditions in spring. Strong positive correlations (always greater than 0.70) between CO and humidity suggest inadequate air exchange reduces IAQ, potentially affecting cognitive performance. This research provides valuable insights for improving student well-being through better air quality management. This research provides valuable insights for optimizing classroom environments, supporting cognitive performance, and improving student well-being through better air quality management.
本研究调查了意大利大学教室的室内空气质量（IAQ）和热舒适度，并考虑了季节变化。室内空气质量差会损害学生的认知能力和幸福感，因此通风策略至关重要。目的是评估一氧化碳（CO）水平、温度和湿度，并分析它们在不同季节的相互作用。在三间教室中应用了一种监测方案，使用非分散红外（NDIR）传感器和微气候评估系统。传感器经过合理放置，以便在春季和秋季的20天内获取具有代表性的数据。结果表明，秋季一氧化碳水平峰值达到2324.2 ppm，显著超过1000 ppm的阈值，而春季水平则保持在953.4 ppm以下。相对湿度范围为32.7%至55.6%，秋季湿度值更高。温度在19.1℃至27.5℃之间变化，春季温度更高。一氧化碳与湿度之间存在强正相关（始终大于0.70），这表明空气交换不足会降低室内空气质量，可能影响认知能力。本研究为通过改善空气质量管理来提高学生幸福感提供了有价值的见解。本研究为优化教室环境、支持认知能力以及通过改善空气质量管理提高学生幸福感提供了有价值的见解。
