Viteri Fausto, Sánchez Nazly E, Alexandrino Katiuska
Grupo de Protección Ambiental (GPA), Facultad de Ciencias de la Ingeniería e Industrias, Universidad UTE, Quito 170527, Ecuador.
Departamento de Ingeniería Ambiental y Sanitaria, Universidad del Cauca, Popayan 190007, Colombia.
Methods Protoc. 2023 Feb 8;6(1):17. doi: 10.3390/mps6010017.
Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous organic compounds coming from natural or anthropogenic activities. Tree organs such as leaves and barks have been used to monitor urban air quality and have achieved remarkable ecological importance. However, the potential of many tree species as biomonitors is still unknown and efforts should be focused on conducting studies that analyze their capabilities with a viable analytical method. In this work, an analytical method for quantification of the 16 EPA priority PAHs from the leaves and bark of was validated. In general, the method showed good linearity, detection limits, precision, and recoveries, demonstrating that it is suitable for analyzing PAHs in both the leaves and bark of the species for which no analytical method for PAHs is yet available. The high prevalence of fluoranthene in the samples, which is a PAH related to coal combustion and biomass burning, and benzo[a]pyrene, which has a carcinogenic effect, was identified.
多环芳烃（PAHs）是源自自然或人为活动的普遍存在的有机化合物。树叶和树皮等树木器官已被用于监测城市空气质量，并具有显著的生态重要性。然而，许多树种作为生物监测器的潜力仍然未知，应致力于开展研究，采用可行的分析方法来分析它们的能力。在这项工作中，一种用于定量测定[具体树种]树叶和树皮中16种美国环境保护局（EPA）优先PAHs的分析方法得到了验证。总体而言，该方法具有良好的线性、检测限、精密度和回收率，表明它适用于分析[具体树种]树叶和树皮中的PAHs，而目前尚无针对该树种PAHs的分析方法。已确定样品中荧蒽（一种与煤炭燃烧和生物质燃烧有关的PAH）和具有致癌作用的苯并[a]芘的高发生率。
