| Title: | Impact of material emissions and sorption of volatile organic compounds on indoor air quality in a low energy building: Field measurements and modeling |
| Author(s): | Rizk M; Guo F; Verriele M; Ward M; Dusanter S; Blond N; Locoge N; Schoemaecker C; |
| Address: | "Laboratoire de Physico-chimie des Processus de Combustion et de l'Atmosphere, Universite de Lille 1 & CNRS, Villeneuve d'Ascq, France. IMT Lille Douai, SAGE - Departement Science de l'Atmosphere et Genie de l'Environnement, University of Lille, Lille, France. Laboratoire Image, Ville, Environnement (LIVE), UMR 7362, Universite de Strasbourg/CNRS, Strasbourg, France" |
| ISSN/ISBN: | 1600-0668 (Electronic) 0905-6947 (Linking) |
| Abstract: | "The assessment of VOC emission rates and sorption coefficients was performed for ten surfaces present within a classroom, using field and laboratory emission cells (FLEC) coupled to online and off-line VOC quantification techniques. A total of 21 identified VOCs were emitted by the different surfaces. VOC emission rates measured using PTR-ToF-MS were compared to gas chromatographic measurements. The results showed that the two methods are complementary to one another. Sorption parameters were also successfully measured for a mixture of 14 VOCs within a few hours (<17 hours per surface). A study of the spatial and temporal variability of the measured parameters was also carried out on the two surfaces that presented the most potential for interaction with VOCs, accounting for the largest surface areas within the room. The dataset of emission rates and sorption parameters was used in the INCA-Indoor model to predict indoor air concentrations of VOCs that are compared to experimental values measured in the room. Modeling results showed that sorption processes had a limited effect on indoor concentrations of VOCs for these field campaigns. Modeled daily profiles show good agreement with the experimental observations for VOCs such as toluene (indoor source) and xylenes (outdoor source) but underestimate concentrations of methanol (both indoor and outdoor sources)" |
| Keywords: | "Air Pollution, Indoor/*analysis Environmental Monitoring/*methods Schools Volatile Organic Compounds/*analysis emission rates field and laboratory emission cell field campaign indoor air quality modeling sorption parameters volatile organic compounds;" |
| Notes: | "MedlineRizk, Malak Guo, Fangfang Verriele, Marie Ward, Michael Dusanter, Sebastien Blond, Nadege Locoge, Nadine Schoemaecker, Coralie eng Research Support, Non-U.S. Gov't England 2018/07/20 Indoor Air. 2018 Nov; 28(6):924-935. doi: 10.1111/ina.12493. Epub 2018 Aug 17" |
