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Sci Total Environ

Title:		Semi-volatile organic compounds in French dwellings: An estimation of concentrations in the gas phase and particulate phase from settled dust
Author(s):		Wei W; Mandin C; Blanchard O; Mercier F; Pelletier M; Le Bot B; Glorennec P; Ramalho O;
Address:		"University of Paris-Est, Scientific and Technical Center for Building (CSTB), Health and Comfort Department, French Indoor Air Quality Observatory (OQAI), 84 Avenue Jean Jaures, Champs sur Marne, 77447 Marne la Vallee Cedex 2, France. Electronic address: Wenjuan.Wei@cstb.fr. University of Paris-Est, Scientific and Technical Center for Building (CSTB), Health and Comfort Department, French Indoor Air Quality Observatory (OQAI), 84 Avenue Jean Jaures, Champs sur Marne, 77447 Marne la Vallee Cedex 2, France. Univ Rennes, EHESP, Inserm, Irset (Institut de recherche en sante, environnement et travail) - UMR_S 1085, F-35000 Rennes, France"
Journal Title:		Sci Total Environ
Year:		2019
Volume:		20181002
Issue:		Pt 2
Page Number:		2742 - 2750
DOI:		10.1016/j.scitotenv.2018.09.398
ISSN/ISBN:		1879-1026 (Electronic) 0048-9697 (Linking)
Abstract:		"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?ª+months to 6?ª+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?ª+ng/m(3). The median concentration of 5 phthalates in the particulate phase was higher than 1?ª+ng/m(3). 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"
Keywords:		Exposure Indoor air quality Partitioning Svoc Settled dust;
Notes:		"PubMed-not-MEDLINEWei, Wenjuan Mandin, Corinne Blanchard, Olivier Mercier, Fabien Pelletier, Maud Le Bot, Barbara Glorennec, Philippe Ramalho, Olivier eng Netherlands 2018/10/31 Sci Total Environ. 2019 Feb 10; 650(Pt 2):2742-2750. doi: 10.1016/j.scitotenv.2018.09.398. Epub 2018 Oct 2"