Benzothiazole (BTHs), benzotriazole (BTRs) and benzenesulfonamide (BSAs) derivates are high production volume chemicals and they are used in several industrial and household applications, therefore it is expected their occurrence in various environments, especially water and air. In this study we developed a method based on gas chromatography-mass spectrometry (GC-MS) combined with pressurised liquid extraction (PLE) to simultaneously determine four BTR, five BTH and six BSA derivates in the particulate matter (PM₁₀) of outdoor air samples collected in quartz fibre filters (QFFs). To the best of our knowledge, this is the first time these compounds have been determined in open ambient environments. Under optimised conditions, method recoveries at the lower and upper concentration levels (0.8 and 4.2 ng m⁻³) ranged from 70 to 120%, except for 1-H-benzothiazole and 2-chlorobenzothiazole, which were about 50%. The repeatability of the method was usually below 20% (n = 3, %RSD) for both concentration levels. This method enables the contaminants to be detected at pg m⁻³ concentration levels. Several samples from two different sites influenced by local industries showed that BTRs, followed by BTHs, were the most detected compounds, whereas BSAs were hardly found. The most frequently determined compounds were 1-H-benzothiazole, 2-chlorobenzothiazole, 1-H-benzotriazole, 2-hydroxibenzothiazole, 5,6-dimethyl-1-H-benzotriazole and the isomers 4- and 5-methyl-1-H-benzotriazole. With the concentrations found, the human exposure assessment and health risk characterization via ambient inhalation were also evaluated taking into account different subpopulation groups classified by age for the two sampling points.

苯并噻唑（BTHs），苯并三唑（BTRs）和苯磺酰胺（BSA）衍生物是高产量的化学品，它们被用于多种工业和家庭应用中，因此预计它们会在各种环境中发生，尤其是在水和空气中。在这项研究中，我们开发了一种基于气相色谱-质谱（GC-MS）结合加压液体萃取（PLE）的方法，可同时测定室外空气颗粒物（PM ₁₀）中的四个BTR，五个BTH和六个BSA衍生物石英纤维过滤器（QFF）中收集的样品。据我们所知，这是首次在开放的环境中测定这些化合物。在优化的条件下，方法的回收率在较低和较高浓度水平（0.8和4.2 ng m^-3）的范围为70-120％，除了1 - H-苯并噻唑和2-氯苯并噻唑约为50％。对于两种浓度水平，该方法的重复性通常低于20％（n = 3，％RSD）。该方法使得能够以pg m ^-3浓度水平检测污染物。来自两个受当地工业影响的不同地点的样品显示，BTRs，其次是BTHs，是检测到最多的化合物，而几乎没有发现BSAs。最常测定的化合物是1- H-苯并噻唑，2-氯苯并噻唑，1- H-苯并三唑，2-氢苯并噻唑，5,6-二甲基-1- H-苯并三唑和异构体4-和5-甲基-1- H-苯并三唑。根据所发现的浓度，还考虑了两个采样点的按年龄分类的不同亚人群，从而评估了通过环境吸入对人体的暴露评估和健康风险特征。