Determination of organic compounds in indoor air with potential reference to air quality |
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| Affiliation: | 1. Institut de Combustion Aérothermique Réactivité et Environnement/OSUC−CNRS, 45071 Orléans, Cedex 2, France;2. Faculty of Science, Mohammed V University in Rabat, 10100 Rabat, Morocco;1. Consiglio Nazionale delle Ricerche – Istituto per la Microelettronica e Microsistemi (CNR-IMM), Lecce, Italy;2. Department of Information Engineering, Brescia University and CNR-INO, Brescia, Italy;3. Electrochemical Processes Unit, IMDEA Energy Institute, Móstoles, Spain;4. Institut de Recerca en Energia de Catalunya (IREC), Barcelona, Spain;5. Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Bellaterra, Spain;6. Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain;7. Departament d’Electrònica, Universitat de Barcelona, Barcelona, Spain;1. Department of Chemistry, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada;2. Department of Chemistry, University of Jordan, Amman 11942, Jordan;3. Department of Chemistry, Memorial University, St. John’s, NL A1B 3X7, Canada;4. Department of Chemistry, University of Winnipeg, Manitoba R3B 2G3, Canada;1. Shaanxi Engineering Research Center of Coal Conversion Alcohol, College of Chemistry and Material, Weinan Normal University, Weinan 714099, PR China;2. Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi''an 710119, PR China |
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| Abstract: | Concentrations of 15 volatile organic compounds have been investigated in the air of two schoolrooms. The chemical analysis included enrichment on porous polymer beads, heat desorption and gas Chromatographic separation on a capillary column connected to either a flame ionization detector or a mass spectrometer. Samples were collected from the indoor air both in the presence and in the absence of the pupils (boys and girls, age 16–19) as well as from the ambient outdoor air. The qualitative composition of indoor and outdoor air was found to be about the same : aliphatic and aromatic hydrocarbons predominate, though indoors the number of compounds detected is larger and the concentrations are higher. Both the number and the concentration increase in the presence of humans. The mean concentrations of acetone and the sum of the concentrations of C2-alkylbenzenes were 7.7 and 8.2 μg m−3 respectively in an unoccupied room and increased to 19.8 and 12.1 μg m−3 respectively in an occupied room. |
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