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

南极沿岸海域持久性有机污染物 (POP) 的迁移和归宿。

• 批准号: 0087872
• 负责人: Hugh Ducklow
• 金额: $ 29.46万
• 依托单位: College of William & Mary Virginia Institute of Marine Science
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-04-01 至 2004-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0087872&HistoricalAwards=false
• 关键词: Transport; Fate; Persistent; Organic; Pollutants

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.

南极地区通常被认为是原始的，遥远，基本上远离工业化世界。 但是，在过去二十年中，人们对持久性有机污染物通过远距离大气迁移在全球环境中移动的担忧大大升级。 持久性有机污染物通过大气迁移、冷凝结和沉积在海冰上而造成污染的可能性是一个有趣的、独特的极地问题。 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、太阳辐照和微生物分解在调动南极食物网中的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模型持久性有机污染物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率、周转率和停留时间的关键物理和生物/化学过程。