Abstract This study characterizes concentrations and describes the spatiotemporal patterns of ambient air polycyclic aromatic compounds (PACs) between 2011 and 2015 in the Athabasca oil sands region (AOSR). 24-hour integrated ambient air samples were collected at multiple sites and analyzed for 110 PACs. Alkylated polycyclic aromatic hydrocarbons (alk-PAHs) formed the majority of the PACs in air and correlated with unsubstituted PAHs, suggesting common emission source(s) and/or origin. Concentrations of individual PACs varied spatially and seasonally. Temporal variability of PAC concentrations was evident, however based on Seasonal Mann-Kendal test a monotonic increase in concentrations at the monitored sites was not significant at p

中文翻译：

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阿尔伯塔（加拿大）阿萨巴斯卡油砂地表可开采区环境空气中的多环芳烃化合物

摘要 本研究表征了 2011 年至 2015 年阿萨巴斯卡油砂区 (AOSR) 环境空气中多环芳烃化合物 (PAC) 的浓度并描述了时空模式。在多个地点收集了 24 小时综合环境空气样本，并分析了 110 个 PAC。烷基化多环芳烃 (alk-PAHs) 形成了空气中的大部分 PAC，并与未取代的 PAHs 相关，表明它们是常见的排放源和/或来源。单个 PAC 的浓度随空间和季节而变化。PAC 浓度的时间变化是明显的，但是根据季节性 Mann-Kendal 测试，监测点浓度的单调增加在 p 时不显着