RAPID: Origin of Persistent Organic Pollutants in the Antarctic Atmosphere, Snow and Marine Food WEB

RAPID：南极大气、雪和海洋食品中持久性有机污染物的来源

• 批准号: 1332492
• 负责人: Rainer Lohmann
• 金额: $ 11.15万
• 依托单位: University of Rhode Island
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-04-01 至 2015-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1332492&HistoricalAwards=false
• 关键词: RAPID; Origin; Persistent; Organic; Pollutants

Many persistent organic pollutants (POPs), though banned in the U.S. since the 1970s, remain in the environment and continue to reach hitherto pristine regions such as the Arctic and Antarctic. The overall goals of this RAPID project are to better understand the remobilization of POPs from melting glaciers in the Antarctic, and their transfer into the food-web. Legacy POPs have characteristic chemical signatures that will be used ascertain the origin of POPs in the Antarctic atmosphere and marine food-web. Samples that were collected in 2010 will be analyzed for a wide range of legacy POPs, and their behavior will be contrasted with results for emerging contaminants. The intellectual merit of the proposed research combines (a) the use of chemical signatures to assess whether melting glaciers are releasing legacy POPs back into the Antarctic marine ecosystem, and (b) a better understanding of the food-web dynamics of legacy POPs versus emerging organic pollutants.The broader impacts of the proposed research project will include the training of the next generation of scientists through support for a graduate student and a postdoctoral scholar. As well, this work will result in a better understanding of the relationship between pollutants, trophic food web ecology and global climate change in the pristine Antarctic ecosystem.

许多持久性有机污染物（POP）虽然自20世纪70年代以来在美国被禁止，但仍然存在于环境中，并继续到达北极和南极等迄今为止的原始地区。这一快速项目的总体目标是更好地了解南极冰川融化中持久性有机污染物的重新流动及其向食物网的转移。遗留的持久性有机污染物具有特有的化学特征，将用于确定南极大气和海洋食物网中持久性有机污染物的来源。将对2010年收集的样本进行广泛的遗留持久性有机污染物分析，并将其行为与新出现的污染物的结果进行对比。拟议研究的知识价值包括：（a）利用化学特征评估冰川融化是否正在将遗留的持久性有机污染物释放回南极海洋生态系统，及（B）对食物有更深入的认识-拟议研究项目的更广泛影响将包括通过支持一名研究生来培训下一代科学家和博士后学者。此外，这项工作将导致更好地了解污染物之间的关系，营养食物网生态和全球气候变化的原始南极生态系统。