Yao Yao, Meng Xiang-Zhou, Wu Chen-Chou, Bao Lian-Jun, Wang Feng, Wu Feng-Chang, Zeng Eddy Y
State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; University of Chinese Academy of Sciences, Beijing 100049, China.
College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
Environ Pollut. 2016 Jun;213:412-419. doi: 10.1016/j.envpol.2016.02.035. Epub 2016 Mar 3.
Freely dissolved polycyclic aromatic hydrocarbons (PAHs) were monitored in seven inland lakes of Antarctica by a polyethylene (PE)-based passive sampling technique, with the objective of tracking human footprints. The measured concentrations of PAHs were in the range of 14-360 ng L(-1) with the highest values concentrated around the Russian Progress II Station, indicating the significance of human activities to the loading of PAHs in Antarctica. The concentrations of PAHs in the inland lakes were in the upper part of the PAHs levels in aquatic environments from remote and background regions across the globe. The composition profiles of PAHs indicated that PAHs in the inland lakes were derived mainly from local oil spills, which was corroborated by a large number of fuel spillage reports from ship and plane crash incidents in Antarctica during recent years. Clearly, local human activities, rather than long-range transport, are the dominant sources of PAH contamination to the inland lakes. Finally, the present study demonstrates the efficacy of PE-based passive samplers for investigating PAHs in the aquatic environment of Antarctica under complex field conditions.
采用基于聚乙烯（PE）的被动采样技术，对南极洲的七个内陆湖泊中自由溶解的多环芳烃（PAHs）进行了监测，目的是追踪人类足迹。测得的多环芳烃浓度在14 - 360纳克/升范围内，最高值集中在俄罗斯进步二号站附近，这表明人类活动对南极洲多环芳烃负荷具有重要影响。内陆湖泊中多环芳烃的浓度处于全球偏远和背景地区水生环境中多环芳烃水平的较高部分。多环芳烃的组成特征表明，内陆湖泊中的多环芳烃主要源自当地的石油泄漏，近年来南极洲船舶和飞机坠毁事故的大量燃油泄漏报告证实了这一点。显然，当地人类活动而非长距离传输是内陆湖泊多环芳烃污染的主要来源。最后,本研究证明了基于PE的被动采样器在复杂野外条件下调查南极洲水生环境中多环芳烃的有效性。
