Print Email Facebook Twitter Spatial and temporal variation of particulate matter characteristics within office buildings — The OFFICAIR study Title Spatial and temporal variation of particulate matter characteristics within office buildings — The OFFICAIR study Author Szigeti, T. Dunster, C. Cattaneo, A. Spinazzè, A. Mandin, C. Le Ponner, E. de Oliveira Fernandes, E. Ventura, G. Saraga, D.E. Sakellaris, I.A. de Kluizenaar, Y. Cornelissen, E. Bartzis, J.G. Kelly, F.J. Publication year 2017 Abstract In the frame of the OFFICAIR project, office buildings were investigated across Europe to assess how the office workers are exposed to different particulate matter (PM) characteristics (i.e. PM2.5 mass concentration, particulate oxidative potential (OP) based on ascorbate and reduced glutathione depletion, trace element concentration and total particle number concentration (PNC)) within the buildings. Two offices per building were investigated during the working hours (5 consecutive days; 8 h per day) in two campaigns. Differences were observed for all parameters across the office buildings. Our results indicate that the monitoring of the PM2.5 mass concentration in different offices within a building might not reflect the spatial variation of the health relevant PM characteristics such as particulate OP or the concentration of certain trace elements (e.g., Cu, Fe), since larger differences were apparent within a building for these parameters compared to that obtained for the PM2.5 mass concentration in many cases. The temporal variation was larger for almost all PM characteristics (except for the concentration of Mn) than the spatial differences within the office buildings. These findings indicate that repeated or long-term monitoring campaigns are necessary to have information about the temporal variation of the PM characteristics. However, spatial variation in exposure levels within an office building may cause substantial differences in total exposure in the long term. We did not find strong associations between the investigated indoor activities such as printing or windows opening and the PNC values. This might be caused by the large number of factors affecting PNC indoors and outdoors. © 2017 Elsevier B.V. Subject Urban Mobility & Environment Fluid & Solid MechanicsSUMS - Sustainable Urban Mobility and Safety HTFD - Heat Transfer & Fluid DynamicsELSS - Earth, Life and Social Sciences TS - Technical SciencesBuildings and InfrastructuresErgonomics2015 UrbanisationEnvironmental healthOffice buildingOxidative potentialParticle number concentrationPM2.5Spatial variation To reference this document use: http://resolver.tudelft.nl/uuid:26d3adbc-a071-49c5-bcbc-a322944595f5 DOI https://doi.org/10.1016/j.scitotenv.2017.01.013 TNO identifier 753470 Publisher Elsevier B.V. ISSN 0048-9697 Source Science of the Total Environment, 587-588, 59-67 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.