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@article{1371785, author = {Tomaz, Sophie and Shahpoury, Pourya and Jaffrezo, JeanandLuc and Lammel, Gerhard and Perraudin, Emilie and VillenaveEmilie, Eric and Albinet, Alexandre}, article_location = {AMSTERDAM}, article_number = {September}, doi = {http://dx.doi.org/10.1016/j.scitotenv.2016.05.137}, keywords = {PAH; OPAH; NPAH; Gas/particle partitioning model; Aerosol; Air quality}, language = {eng}, issn = {0048-9697}, journal = {Science of the Total Environment}, title = {One-year study of polycyclic aromatic compounds at an urban site in Grenoble (France): Seasonal variations, gas/particle partitioning and cancer risk estimation}, url = {http://www.sciencedirect.com/science/article/pii/S0048969716310671}, volume = {565}, year = {2016} }
TY - JOUR ID - 1371785 AU - Tomaz, Sophie - Shahpoury, Pourya - Jaffrezo, Jean-Luc - Lammel, Gerhard - Perraudin, Emilie - VillenaveEmilie, Eric - Albinet, Alexandre PY - 2016 TI - One-year study of polycyclic aromatic compounds at an urban site in Grenoble (France): Seasonal variations, gas/particle partitioning and cancer risk estimation JF - Science of the Total Environment VL - 565 IS - September SP - 1071-1083 EP - 1071-1083 PB - Elsevier SN - 00489697 KW - PAH KW - OPAH KW - NPAH KW - Gas/particle partitioning model KW - Aerosol KW - Air quality UR - http://www.sciencedirect.com/science/article/pii/S0048969716310671 L2 - http://www.sciencedirect.com/science/article/pii/S0048969716310671 N2 - 21 PAHs, 27 oxy-PAHs and 32 nitro-PAHs were measured every third day over a year in both gaseous (G) and particulate PM10 (P) phases in ambient air of Grenoble (France). Mean total concentrations (G + P) of PAHs and oxy-PAHs were in the same range and about 10 ng m(-3). Nitro-PAHs were 50 to 100 times less concentrated averaging 100 pg m(-3). Polycyclic aromatic compound (PAC) concentrations were 5 to 7 times higher in "cold" period (October to March) than in "warm" period (April to September). Seasonal variations may be explained by higher primary emissions from residential heating, especially biomass burning in "cold" season. Meteorological conditions and influence of the geomorphology around Grenoble, with the formation of thermal inversion layers leading to the stagnation of pollutants, were additional key parameters. Maximum individual PAC concentrations were observed during two PM10 pollution events in December and February-March. Chemical processes and secondary formation of oxy-and nitro-PAH were probably enhanced by the accumulation of the pollutants during these events. PAC gas/particle partitioning depended on compound molecular weight and vapour pressure. Gas/particle partitioning of oxy- and nitro-PAHs were evaluated using a multi-phase poly-parameter linear free energy relationship model. The PAC cancer risk was assessed using toxic equivalency factors available in the literature (19 PAHs, 10 nitro-PAHs and 1 oxy- PAH). Overall, particle-bound PACs contributed about 76% of the cancer risk. While PAHs accounted for most of the total PAC cancer risk, oxy- and nitro-PAHs could account for up to 24%. The risk quantification across substance classes is limited by toxicological data availability. ER -
TOMAZ, Sophie, Pourya SHAHPOURY, Jean-Luc JAFFREZO, Gerhard LAMMEL, Emilie PERRAUDIN, Eric VILLENAVEEMILIE and Alexandre ALBINET. One-year study of polycyclic aromatic compounds at an urban site in Grenoble (France): Seasonal variations, gas/particle partitioning and cancer risk estimation. \textit{Science of the Total Environment}. AMSTERDAM: Elsevier, 2016, vol.~565, September, p.~1071-1083. ISSN~0048-9697. Available from: https://dx.doi.org/10.1016/j.scitotenv.2016.05.137.
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