Cumulative health risk assessment of halogenated and parent polycyclic aromatic hydrocarbons associated with particulate matters in urban air
作者： Jian-Lin Sun , Xin Jing , Wen-Jing Chang , Zheng-Xia Chen , Hui Zeng
DOI: 10.1016/J.ECOENV.2014.11.024
关键词: Risk level 、 Health risk assessment 、 Fluoranthene 、 Inhalation exposure 、 Particulates 、 Chemistry 、 Cancer risk 、 Environmental chemistry 、 Pyrene 、 Chrysene
摘要: Halogenated polycyclic aromatic hydrocarbons (HPAHs) have been reported to occur widely in urban air. Nevertheless, knowledge about the human health risk associated with inhalation exposure HPAHs is scarce so far. In present study, nine and 16 PAHs were determined atmospheric particulate matter (PM) collected from Shenzhen, China address this issue. Concentrations of Σ9HPAHs varied 0.1 1.5 ng/m(3) 0.09 0.4 PM10 PM2.5 samples, respectively. As for individuals, 9-bromoanthracene, 7-bromobenz(a)anthracene, 9,10-dibromoanthracene dominant congeners. Levels Σ16PAHs samples ranged 3.2 81 2.8 85 ng/m(3), Among individual PAHs, chrysene, benzo[b]fluoranthene, indeno[1,2,3-c,d]pyrene main According season, concentrations PM10/PM2.5 show a similar decreasing trend an order: winter>autumn>spring>summer. The daily intake (DI) PM10/PM2.5-bound estimated. Our results indicated that children highest DI levels via exposure. incremental lifetime cancer (ILCR) induced by calculated. ILCR values showed adults>children>seniors>adolescent. Overall, far below priority level (10(-4)), indicating no obvious risk. To our knowledge, first study investigate HPAHs.
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