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首页> 外文期刊>Aerosol and Air Quality Research >Relationships between Outdoor and Personal Exposure of Carbonaceous Species and Polycyclic Aromatic Hydrocarbons (PAHs) in Fine Particulate Matter (PM2.5) at Hong Kong
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Relationships between Outdoor and Personal Exposure of Carbonaceous Species and Polycyclic Aromatic Hydrocarbons (PAHs) in Fine Particulate Matter (PM2.5) at Hong Kong

机译：在香港，细颗粒物（PM2.5）中碳素物质与多环芳烃（PAHs）在户外和个人暴露之间的关系

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Personal and ambient fine particulate matter (PM2.5) samples were simultaneously collected at Hong Kong during winter in 2014. Mass concentration, organic carbon (OC), elemental carbon (EC), and polycyclic aromatic hydrocarbons (PAHs) relationships were analyzed. The correlations of personal and ambient concentrations of PM2.5, OC, and EC indicated the ambient concentrations were the factors showing influences on the personal exposures. Personal to ambient (P/A) ratios in PM2.5, OC, and EC were all > 1, suggesting influences between indoor sources and/or personal activities. Significant higher ambient ΣPAHs concentrations with P/A ratios were nevertheless < 1. The Σ15 U.S. EPA priority PAHs accounted for 50.6% and 70.8% of ΣPAHs in personal and ambient samples, respectively. The ratios of indicator compounds confirmed the origin of PAHs in personal PM2.5, which were found to be associated predominantly with traffic emissions and the influence by the indoor sources.
机译：2014年冬季，香港同时收集了个人和周围的细颗粒物（PM2.5）样品。分析了质量浓度，有机碳（OC），元素碳（EC）和多环芳烃（PAHs）的关系。 PM2.5，OC和EC的个人浓度与环境浓度的相关性表明，环境浓度是显示对个人暴露量有影响的因素。 PM2.5，OC和EC中的个人与环境（P / A）之比均> 1，表明室内资源和/或个人活动之间存在影响。但是，具有P / A比的显着较高的环境ΣPAH浓度<1。美国和美国EPA优先使用Σ15的PAH分别占个人和环境样品中ΣPAH的50.6％和70.8％。指示剂化合物的比例证实了个人PM2.5中PAHs的起源，发现其主要与交通排放和室内来源的影响有关。

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