Polycyclic aromatic hydrocarbons (PAHs) were assessed in 65 atmospheric particulate matter (PM₁₀) samples collected at a coastal urban area of Southwest Atlantic Europe during the 1-year period. Analytical methodology was successfully validated in terms of limits of detection and quantification, linearity, precision and trueness by using ERM CZ100 reference material and analytical recovery studies. Status of PM₁₀-bound PAHs and their relationship with other PM₁₀ constituents (major ions, trace metals, equivalent black carbon (eBC) and UV-absorbing particulate matter (UVPM)) in an area where few data are available is provided. Benzo(b)fluoranthene (BbF) and benzo(e)pyrene (BeP) were observed to be predominant in all samples analysed with average concentrations of 1.6 and 1.5 ng m⁻³, respectively. Furthermore, high RSDs were achieved for PAHs during the sampling period, which reflects inherent heterogeneity of the atmospheric particles besides weather conditions variations. Statistical significant seasonal changes in PAH concentrations during summer and winter seasons were not found. Data obtained from molecular PAH indices, univariate analysis, principal component analysis (PCA) and cluster analysis (CA) suggested a pyrogenic origin derived from the continuous harbour activity and marine and road traffic emissions at the studied urban site throughout the year. Additionally, major ion and metal(oid) concentrations in PM₁₀ samples were also used as tracers of PAH origin and for PM₁₀ source exploration. Linear and quadratic models have shown that the PAH concentrations exhibited correlation with some metals (Ba, Bi, Cu, Pb, Sb and Zn) and NO₃⁻ concentrations. Finally, carcinogenic and mutagenic potencies and inhalation cancer risk (ILCR_inh) posed by PM₁₀-bound PAHs were assessed.

在一年的时间里，对西南大西洋欧洲沿海城市地区收集的65个大气颗粒物（PM ₁₀）样品中的多环芳烃（PAH）进行了评估。通过使用ERM CZ100参考材料和分析回收率研究，分析方法在检测和定量限，线性，精度和真实性方面得到了成功验证。绑定到PM _10的PAH的状态及其与其他PM ₁₀的关系缺乏数据的区域中的主要成分（主要离子，痕量金属，当量黑碳（eBC）和吸收紫外线的颗粒物（UVPM））。在所有分析的样品中，平均浓度分别为1.6和1.5 ng m ^-3的苯并（b）荧蒽（BbF）和苯并（e）re（BeP）是主要的， 分别。此外，在采样期间，PAHs达到了较高的RSD，这反映了除天气条件变化外，大气颗粒的固有异质性。没有发现夏季和冬季的PAH浓度有统计上的显着季节性变化。从分子PAH指数，单变量分析，主成分分析（PCA）和聚类分析（CA）获得的数据表明，热源起源于全年在所研究的城市地点持续的港口活动以及海洋和道路交通排放。此外，PM ₁₀样品中的主要离子和金属（类固醇）浓度也用作PAH起源和PM _10的示踪剂来源探索。线性和二次模型已经表明，PAH的浓度表现出与一些金属（钡，铋，铜，铅，锑和锌）和NO相关₃ ^-的浓度。最后，评估了与PM ₁₀结合的PAH所致的致癌和诱变能力以及吸入性癌症风险（ILCR _inh）。