| Title: | Modeling the bioaccessibility of inhaled semivolatile organic compounds in the human respiratory tract |
| Author(s): | Wei W; Ramalho O; Mandin C; |
| 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, Marne la Vallee Cedex 2, Champs sur Marne, 77447, 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, Marne la Vallee Cedex 2, Champs sur Marne, 77447, France" |
| DOI: | 10.1016/j.ijheh.2019.113436 |
| ISSN/ISBN: | 1618-131X (Electronic) 1438-4639 (Linking) |
| Abstract: | "The bioaccessibility of semivolatile organic compounds (SVOCs) via inhalation has rarely been studied, as indicated by the literature. There is no model to calculate the SVOC bioaccessibility following inhalation, and measurement data have focused on only a few polycyclic aromatic hydrocarbons (PAHs) in the particle phase. The present work developed a mechanistic model to address the mass transfer of inhaled SVOCs among the gas, particle and mucus phases in the human respiratory tract. The model considers (1) the SVOC partitioning between the gas and particle phases as well as between the gas and mucus phases and (2) the deposition of gas- and particle-phase SVOCs in the mucus of the respiratory tract. Based on the model, the inhalation bioaccessibility for 72 SVOCs was calculated. The SVOCs were measured in French dwellings at the nationwide scale, and their median concentrations in both the gas and particle phases were used for the bioaccessibility calculations. The results show that the inhalation bioaccessibility varies considerably from one compound to another, e.g., between 0.62 and 1.00 for phthalates, between 0.71 and 0.79 for polybrominated diphenyl ethers (PBDEs), between 0.48 and 0.56 for polychlorinated biphenyls (PCBs), between 0.48 and 1.00 for different chemical families of pesticides and between 0.48 and 0.90 for PAHs" |
| Keywords: | "Air Pollutants Air Pollution, Indoor Bioaccumulation/*physiology Environmental Monitoring Halogenated Diphenyl Ethers Humans Inhalation Exposure/*statistics & numerical data *Models, Biological Pesticides Phthalic Acids Polychlorinated Biphenyls Polycycli;" |
| Notes: | "MedlineWei, Wenjuan Ramalho, Olivier Mandin, Corinne eng Research Support, Non-U.S. Gov't Germany 2020/01/25 Int J Hyg Environ Health. 2020 Mar; 224:113436. doi: 10.1016/j.ijheh.2019.113436. Epub 2019 Dec 21" |
