海洋环境PAHs研究进展:来源、分布及生物地球化学过程

作为一种持续产生的半挥发性有机污染物，多环芳烃（PAHs）可通过大气远距离传输、海-气交换、地表径流和石油泄漏等途径进入海洋环境中，并传输到远洋、极地和深海地区，目前已在海洋大气、水体、沉积物和海洋生物中发现了PAHs的踪迹。它们参与到物理传输、多介质分配和生物地球化学循环过程中，并对海洋生态系统产生一定程度的环境风险。本文综述了海洋环境中PAHs来源、分布、地球物理及生物地球化学过程的研究进展。

Research progress of PAHs in marine environment: source,distribution and biogeochemical process

As class of continuously generated semi-volatile persistent organic pollutants (POPs), polycyclic aromatic hydrocarbons (PAHs) can enter the marine environment through long-range atmospheric transport, air-sea exchange, riverine runoff and oil leakage. While they can be further transported to the remote, polar and deep ocean. PAHs have been observed in a variety of environmental compartments, such as atmosphere, seawater, sediment as well as marine organisms. They are involved in numerous processes, including physical transport, multi-media partitioning and biogeochemical cycles, which result in environmental risks to the marine ecosystem. In this paper, the occurrence, sources, geophysical and biogeochemical processes of PAHs in marine environment are reviewed.