Transport and Fate of Persistent Organic Pollutants (POPs) in Antarctic Coastal Seas.

南极地区通常被认为是原始的，远离工业化世界，在很大程度上远离工业化世界。但在过去的二十年里，人们对持久性有机污染物(POPs)通过长距离大气传输在全球环境中的迁移的担忧已经大大升级。持久性有机污染物可能通过大气输送、冷凝和海冰沉积而受到污染，这是一个耐人寻味的独特的两极问题。这项拟议工作的总体目标是了解大气沉积、海冰覆盖和融化、太阳辐射和微生物分解之间在动员南极食物网中持久性有机污染物方面的相互作用。与帕尔默长期生态研究计划(LTER)合作，拟议的工作旨在记录选定的持久性有机污染物模型在西南极半岛海冰和水柱中的积累情况。此外，还将调查影响持久性有机污染物去除速度、周转率和停留时间的关键物理和生物/化学过程。

The Antarctic region is typically considered pristine, being distant and largely sheltered from the industrialized world. But concern about the movement of persistent organic pollutants (POPs) throughout the global environment via long-range atmospheric transport has escalated greatly in the last two decades. The potential for POP contamination via atmospheric transport, cold condensation and deposition on sea ice present an intriguing and uniquely polar issue. The overall goal of this proposed work is to understand the interactions among atmospheric deposition, sea ice coverage and melting, solar irradiance and microbial decomposition in mobilizing persistent organic pollutants in Antarctic foodwebs. In cooperation with the Palmer Long-Term Ecological Research program (LTER), the proposed work aims to document the accumulation of selected model POPs in sea ice and the water column along the West Antarctic Peninsula. Furthermore, key physical and biological/chemical processes influencing POP removal rates, turnover, and residence times would also be investigated.