| Title: | Seasonal evaluation of outdoor/indoor air quality in primary schools in Lisbon |
| Author(s): | Pegas PN; Alves CA; Evtyugina MG; Nunes T; Cerqueira M; Franchi M; Pio CA; Almeida SM; Verde SC; Freitas MC; |
| Address: | "Centre for Environmental and Marine Studies-CESAM, Department of Environment, University of Aveiro, Aveiro, Portugal. priscillapegas@ua.pt" |
| ISSN/ISBN: | 1464-0333 (Electronic) 1464-0325 (Linking) |
| Abstract: | "The aim of this study was to evaluate the indoor (I) and outdoor (O) levels of NO(2), speciated volatile organic compounds (VOCs) and carbonyls at fourteen primary schools in Lisbon (Portugal) during spring, autumn and winter. Three of these schools were also selected to be monitored for comfort parameters, such as temperature and relative humidity, carbon dioxide (CO(2)), carbon monoxide (CO), total VOCs, and both bacterial and fungal colony-forming units per cubic metre. The concentration of CO(2) and bioaerosols greatly exceeded the acceptable maximum values of 1800 mg m(-)(3) and 500 CFU m(-)(3), respectively, in all seasons. Most of the assessed VOCs and carbonyls occurred at I/O ratios above unity in all seasons, thus showing the importance of indoor sources and building conditions in indoor air quality. However, it has been observed that higher indoor VOC concentrations occurred more often in the colder months, while carbonyl concentrations were higher in the warm months. In general, the I/O NO(2) ratios ranged between 0.35 and 1, never exceeding the unity. Some actions are suggested to improve the indoor air quality in Lisbon primary schools" |
| Keywords: | "Air/analysis *Air Microbiology Air Pollutants/*analysis Air Pollution, Indoor/*analysis Animals Humans Nitrogen Dioxide/analysis Portugal Schools Seasons Tobacco Smoke Pollution/analysis Vehicle Emissions/analysis Ventilation Volatile Organic Compounds/*a;" |
| Notes: | "MedlinePegas, P N Alves, C A Evtyugina, M G Nunes, T Cerqueira, M Franchi, M Pio, C A Almeida, S M Verde, S Cabo Freitas, M C eng Research Support, Non-U.S. Gov't England 2011/01/29 J Environ Monit. 2011 Mar; 13(3):657-67. doi: 10.1039/c0em00472c. Epub 2011 Jan 27" |
