Ventilation Positive Pressure Intervention Effect on Indoor Air Quality in a School Building with Moisture Problems
AbstractThis case study investigates the effects of ventilation intervention on measured and perceived indoor air quality (IAQ) in a repaired school where occupants reported IAQ problems. Occupants’ symptoms were suspected to be related to the impurities leaked indoors through the building envelope. The study’s aim was to determine whether a positive pressure of 5–7 Pa prevents the infiltration of harmful chemical and microbiological agents from structures, thus decreasing symptoms and discomfort. Ventilation intervention was conducted in a building section comprising 12 classrooms and was completed with IAQ measurements and occupants’ questionnaires. After intervention, the concentration of total volatile organic compounds (TVOC) and fine particulate matter (PM2.5) decreased, and occupants’ negative perceptions became more moderate compared to those for other parts of the building. The indoor mycobiota differed in species composition from the outdoor mycobiota, and changed remarkably with the intervention, indicating that some species may have emanated from an indoor source before the intervention. View Full-Text
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Vornanen-Winqvist, C.; Järvi, K.; Toomla, S.; Ahmed, K.; Andersson, M.A.; Mikkola, R.; Marik, T.; Kredics, L.; Salonen, H.; Kurnitski, J. Ventilation Positive Pressure Intervention Effect on Indoor Air Quality in a School Building with Moisture Problems. Int. J. Environ. Res. Public Health 2018, 15, 230.
Vornanen-Winqvist C, Järvi K, Toomla S, Ahmed K, Andersson MA, Mikkola R, Marik T, Kredics L, Salonen H, Kurnitski J. Ventilation Positive Pressure Intervention Effect on Indoor Air Quality in a School Building with Moisture Problems. International Journal of Environmental Research and Public Health. 2018; 15(2):230.Chicago/Turabian Style
Vornanen-Winqvist, Camilla; Järvi, Kati; Toomla, Sander; Ahmed, Kaiser; Andersson, Maria A.; Mikkola, Raimo; Marik, Tamás; Kredics, László; Salonen, Heidi; Kurnitski, Jarek. 2018. "Ventilation Positive Pressure Intervention Effect on Indoor Air Quality in a School Building with Moisture Problems." Int. J. Environ. Res. Public Health 15, no. 2: 230.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.