title: Emission characteristics of air pollutants from incense and candle burning in indoor atmospheres.
abstract: Volatile organic compounds (VOCs) and particles emitted by incense sticks and candles combustion in an experimental room have been monitored on-line and continuously with a high time resolution using a state-of-the-art high sensitivity-proton transfer reaction-mass spectrometer (HS-PTR-MS) and a condensation particle counter (CPC), respectively. The VOC concentration-time profiles, i.e., an increase up to a maximum concentration immediately after the burning period followed by a decrease which returns to the initial concentration levels, were strongly influenced by the ventilation and surface interactions. The obtained kinetic data set allows establishing a qualitative correlation between the elimination rate constants of VOCs and their physicochemical properties such as vapor pressure and molecular weight. The emission of particles increased dramatically during the combustion, up to 9.1(±0.2) × 10(4) and 22.0(±0.2) × 10(4) part cm(-3) for incenses and candles, respectively. The performed kinetic measurements highlight the temporal evolution of the exposure level and reveal the importance of ventilation and deposition to remove the particles in a few hours in indoor environments.
authors.affiliation: Aix Marseille Université, CNRS, LCE, FRE 3416, 13331 Marseille Cedex 03, France.
authors.forename: A
authors.initials: A
authors.lastname: Manoukian
authors.forename: E
authors.initials: E
authors.lastname: Quivet
authors.forename: B
authors.initials: B
authors.lastname: Temime-Roussel
authors.forename: M
authors.initials: M
authors.lastname: Nicolas
authors.forename: F
authors.initials: F
authors.lastname: Maupetit
authors.forename: H
authors.initials: H
authors.lastname: Wortham
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D016902:Air Pollution, Indoor / Q000032:analysis*; D010316:Particle Size; D014691:Ventilation; D055549:Volatile Organic Compounds / Q000032:analysis*
chemical_list: D000393:Air Pollutants; D055549:Volatile Organic Compounds