Novel brominated flame retardants (NBFRs) and organophosphate esters (OPEs) have been widely detected in various environmental matrices worldwide and raised public concerns in recent years. However, few studies reported their occurrence and temporal trend in Antarctic air. In this study, concentrations, distribution, and temporal trends of NBFRs and OPEs in the air of Fildes Peninsula, West Antarctica, were investigated using XAD resin-based passive air sampling from January 2011 to January 2020. Air concentrations of the total OPEs (Σ₇OPEs) were one to two orders of magnitude higher than those of the total NBFRs (Σ₆NBFRs). Decabromodiphenyl ethane and tris(2-chloroethyl) phosphate were the most abundant NBFR and OPE congeners, respectively. Significant positive correlations were observed among hexabromobenzene, pentabromoethylbenzene, and pentabromotoluene, indicating that their occurrence in Antarctic air may be affected by similar sources. No spatial differences in any of the NBFR and OPE congeners were observed, implying minor impact from local scientific research stations. Linear regression analysis was used to evaluate the temporal trends of NBFRs and OPEs in Antarctic air, with decreasing trends observed for Σ₆NBFRs and Σ₇OPEs. This is one of the rare studies providing a comprehensive investigation of the temporal trends in NBFRs and OPEs in Antarctic air and highlights concern regarding the contamination of these chemicals in remote polar regions.

近年来，新型溴化阻燃剂 (NBFR) 和有机磷酸酯 (OPE) 已在全球各种环境基质中广泛检测到，并引起了公众的关注。然而，很少有研究报告它们在南极空气中的发生和时间趋势。在这项研究中，从 2011 年 1 月到 2020 年 1 月，使用基于 XAD 树脂的被动空气采样研究了西南极洲 Fildes 半岛空气中 NBFR 和 OPE 的浓度、分布和时间趋势。总 OPE 的空气浓度（Σ _{7 个}OPE）比总 NBFR（Σ ₆NBFR）。十溴二苯乙烷和磷酸三（2-氯乙基）酯分别是最丰富的 NBFR 和 OPE 同系物。六溴苯、五溴乙基苯和五溴甲苯之间存在显着的正相关，表明它们在南极空气中的出现可能受到类似来源的影响。没有观察到任何 NBFR 和 OPE 同系物的空间差异，这意味着当地科研站的影响很小。使用线性回归分析评估南极空气中 NBFR 和 OPE 的时间趋势，观察到 Σ ₆ NBFR 和 Σ _{7呈下降趋势}OPE。这是对南极空气中 NBFR 和 OPE 的时间趋势进行全面调查的罕见研究之一，并强调了对偏远极地地区这些化学物质污染的担忧。