title: Assessment of the Indoor Odour Impact in a Naturally Ventilated Room.
abstract: Indoor air quality influences people's lives, potentially affecting their health and comfort. Nowadays, ventilation is the only technique commonly used for regulating indoor air quality. CO₂ is the reference species considered in order to calculate the air exchange rates of indoor environments. Indeed, regarding air quality, the presence of pleasant or unpleasant odours can strongly influence the environmental comfort. In this paper, a case study of indoor air quality monitoring is reported. The indoor field tests were conducted measuring both CO₂ concentration, using a photoacoustic multi-gas analyzer, and odour trends, using an electronic nose, in order to analyze and compare the information acquired. The indoor air monitoring campaign was run for a period of 20 working days into a university room. The work was focused on the determination of both CO₂ and odour emission factors (OEF) emitted by the human activity and on the evaluation of the odour impact in a naturally ventilated room. The results highlighted that an air monitoring and recycling system based only on CO₂ concentration and temperature measurements might be insufficient to ensure a good indoor air quality, whereas its performances could be improved by integrating the existing systems with an electronic nose for odour detection.
authors.affiliation: Politecnico di Milano, Dipartimento di Chimica, Materiali e Ingegneria Chimica "G. Natta", P.za Leonardo da Vinci 32, 20133 Milano, Italy. lidia.eusebio@polimi.it.
authors.forename: Lidia
authors.initials: L
authors.lastname: Eusebio
authors.affiliation: Politecnico di Milano, Dipartimento di Chimica, Materiali e Ingegneria Chimica "G. Natta", P.za Leonardo da Vinci 32, 20133 Milano, Italy. marco.derudi@polimi.it.
authors.forename: Marco
authors.initials: M
authors.lastname: Derudi
authors.affiliation: Politecnico di Milano, Dipartimento di Chimica, Materiali e Ingegneria Chimica "G. Natta", P.za Leonardo da Vinci 32, 20133 Milano, Italy. laura.capelli@polimi.it.
authors.forename: Laura
authors.initials: L
authors.lastname: Capelli
authors.affiliation: Politecnico di Milano, Dipartimento di Chimica, Materiali e Ingegneria Chimica "G. Natta", P.za Leonardo da Vinci 32, 20133 Milano, Italy. giuseppe.nano@polimi.it.
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Nano
authors.affiliation: Politecnico di Milano, Dipartimento di Chimica, Materiali e Ingegneria Chimica "G. Natta", P.za Leonardo da Vinci 32, 20133 Milano, Italy. selena.sironi@polimi.it.
authors.forename: Selena
authors.initials: S
authors.lastname: Sironi
mesh_terms: D009812:Odorants / Q000032:analysis*; D014691:Ventilation
keywords: CO2; emission factors; indoor air quality; modeling; naturally-ventilated rooms; odour monitoring