Cheng Guanjie, Li Ruijing, Xu Yunfeng, Hou Chao, Jia Xuan, Li Bing, Gao Hui, Jin Shuaichen, Kong Liang, Na Guangshui
College of Marine Technology and Environment, Dalian Ocean University, Dalian 116023, China; National Marine Environmental Monitoring Center, Dalian 116023, China.
National Marine Environmental Monitoring Center, Dalian 116023, China.
J Environ Sci (China). 2025 Nov;157:330-339. doi: 10.1016/j.jes.2024.05.043. Epub 2024 Jun 13.
The harsh natural environment of Antarctica has led to a lack of research on the presence and transport mechanisms of organophosphate esters (OPEs) within its ecosystem. In this study, we analyzed levels of 11 OPEs in air, soil, and vegetation samples collected during the 2018-2019 Chinese 35th Antarctic Scientific Expedition. Additionally, a level III fugacity model was developed to simulate the movement and fate of detected OPEs in the air, soil, and vegetation of the Fildes Peninsula. Our model indicated that the primary OPE-migration pathway was from the atmosphere to the soil. OPE transportation primarily occurred through atmospheric wet deposition and rainwater dissolution. Among the 20 transport and transformation processes, atmospheric degradation was the most significant loss mechanism. The proposed model provides a method for continued investigation into the fate of OPEs in the Fildes Peninsula ecosystem.
南极洲恶劣的自然环境导致对其生态系统中有机磷酸酯（OPEs）的存在及迁移机制缺乏研究。在本研究中，我们分析了在2018 - 2019年中国第35次南极科学考察期间采集的空气、土壤和植被样本中11种OPEs的含量。此外，还开发了一个三级逸度模型，以模拟菲尔德斯半岛空气、土壤和植被中检测到的OPEs的迁移和归宿。我们的模型表明，OPEs的主要迁移途径是从大气到土壤。OPEs的迁移主要通过大气湿沉降和雨水溶解发生。在20种迁移和转化过程中，大气降解是最主要的损失机制。所提出的模型为继续研究菲尔德斯半岛生态系统中OPEs的归宿提供了一种方法。
