文献类型： 会议论文

第一作者： Li Xin-Rong

作者： Li Xin-Rong ¹ ; Yu Yan-Xin ² ;

作者机构： 1.Institute of Plant Nutrition and Natural Resources, Beijing Academy of Agriculture and Forestry Sciences. Beijing,100097 China

2.Laboratory for Earth Surface Processes, College of Environmental Sciences Peking University Beijing 100871, China

关键词： Exposure;formatting;PAHs;Tianjin

会议名称： International Conference on Biomedical Engineering and Biotechnology (iCBEB 2012)

主办单位：

页码： 1471-1474

摘要： People exposure to ambient polycyclic aromatic hydrocarbons (PAHs) in Tianjin area was estimated based on field data of media concentrations and other data from the literature. A multi-pathway human exposure model by USEPA was employed to calculate the populations’ Chronic Daily Intake (CDI) of PAHs. The results showed that the CDI of child, adolescent and adult were 2.92, 2.33 and 1.90 μg/(kg?d) respectively. The population’s lifelong CDI in terms of weighted age was 2.06 μg/(kg?d). Diet exposure was the most important route, accounting for around 94% of the total dosefollowed by respiration and skin routes which respectively contributed 5% and 1%. Lifelong CDI of six carcinogenic PAHs (PAH6) was 0.15μg/(kg?d) and the groups of child, youth and adult were 0.22, 0.16 and 0.14 μg/(kg?d), respectively. The results of Monte Carlo simulation demonstrated that exposure approximately followed normal logarithmic distribution after logarithmic transformation. The geometric mean values of exposure to adult, youth and child were 2.09, 2.61 and 2.63 μg/(kg?d).

分类号： R318-53