Semi-volatile organic compounds in French dwellings An estimation of concentrations in the gas phase and particulate phase from settled dust

Autor: Maud Pelletier, Barbara Le Bot, Fabien Mercier, Olivier Blanchard, Olivier Ramalho, Corinne Mandin, Wenjuan Wei, Philippe Glorennec
Přispěvatelé: Centre Scientifique et Technique du Bâtiment (CSTB), Institut de recherche en santé, environnement et travail (Irset), Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique )-Institut National de la Santé et de la Recherche Médicale (INSERM)-École des Hautes Études en Santé Publique [EHESP] (EHESP)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Université d'Angers (UA), École des Hautes Études en Santé Publique [EHESP] (EHESP), 2011-1-128, ANSES, Agence Nationale de Sécurité Sanitaire de l’Alimentation, de l’Environnement et du Travail, PRESTIGE-2015-3-0016, REA, Research Executive Agency, PCOFUND-GA-2013-609102, REA, Research Executive Agency, FP7, Seventh Framework Programme, ASPH, Association of Schools of Public Health, Université d'Angers (UA)-Université de Rennes (UR)-École des Hautes Études en Santé Publique [EHESP] (EHESP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique )
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Science of the Total Environment
Science of the Total Environment, Elsevier, 2019, 650, pp.2742-2750. ⟨10.1016/j.scitotenv.2018.09.398⟩
Science of the Total Environment, 2019, 650, pp.2742-2750. ⟨10.1016/j.scitotenv.2018.09.398⟩
ISSN: 0048-9697
1879-1026
Popis: International audience; Semi-volatile organic compounds (SVOCs) are present in the gas phase, particulate phase and settled dust in the indoor environment, resulting in human exposure through different pathways. Sometimes, SVOCs are only measured in a single phase because of practical and/or financial constraints. A probabilistic method proposed by Wei et al. for the prediction of the SVOC concentration in the gas phase from the SVOC concentration in the particulate phase was extended to model the equilibrium SVOC concentrations in both the gas and particulate phases from the SVOC concentration measured in settled dust. This approach, based on the theory of SVOC partitioning among the gas phase, particulate phase, and settled dust incorporating Monte Carlo simulation, was validated using measured data from the literature and applied to the prediction of the concentrations of 48 SVOCs in both the gas and particulate phases in 3.6 million French dwellings where at least one child aged 6 months to 6 years lived. The median gas-phase concentration of 15 SVOCs, i.e., 5 phthalates, 2 organochlorine pesticides, 4 polycyclic aromatic hydrocarbons (PAHs), 2 synthetic musks, dichlorvos, and tributyl phosphate, was found to be higher than 1 ng/m3. The median concentration of 5 phthalates in the particulate phase was higher than 1 ng/m3. The impacts of some physical parameters, such as the molar mass and boiling point, on the SVOC partitioning among the different phases were quantified. The partitioning depends on the activity coefficient, vapor pressure at the boiling point, entropy of evaporation of the SVOCs, and the fraction of organic matter in particles. Thus, the partitioning may differ from one chemical family to another. The empirical equations based on regressions allow quick estimation of SVOC partitioning among the gas phase, particulate phase, and settled dust from the molar mass and boiling point.
Databáze: OpenAIRE
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