Atmospheric Inputs and the Photochemical Transformation of Brominated Flame Retardants in Arctic Surface Waters
大气输入和北极地表水中溴化阻燃剂的光化学转化
基本信息
- 批准号:1203861
- 负责人:
- 金额:$ 10.98万
- 依托单位:
- 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:2013-01-01 至 2015-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Brominated flame-retardants (BFR) are ubiquitously distributed in the environment and capable of being transported to the arctic by long-range processes (i.e., global distillation). The proposed research would measure BFR concentrations in air and water, and study processes that control their fate in the presence of dissolved organic matter (DOM) and light from surface water bodies at the Toolik Lake long-term ecological research (LTER) station. Specific objectives include:1. measure BFR levels in air and water bodies at the Toolik Lake LTER;2. collect, isolate, and elucidate the structural and photolytic properties of DOM from water bodies at the Toolik LTER;3. study BFR partitioning to DOM and assess the role of DOM composition on this process;4. measure the degree to which direct and indirect photolysis occurs for BFR in the respective presence and absence of DOM using solar simulators and natural sunlight at Toolik Lake; 5. identify the reaction products produced by the phototransformation of BFR; and6. elucidate reactive pathways that control the phototransformation of BFR in the presence of DOM. This project would study a BFR environmental pathway that is a critical link in the bioaccumulation of these substances in the arctic food chain. It would primarily provide lab and logistical support for a doctoral student, and would also support an undergraduate assistant during the summer field season. The investigators plan an active outreach program including interfacing with the LTER Schoolyard program and ARCUS, and the graduate student would maintain a research blog.
溴化阻燃剂(BFR)广泛分布于环境中,并能够通过长距离过程(即,全球蒸馏)。拟议的研究将测量空气和水中的溴化阻燃剂浓度,并研究在溶解有机物(DOM)和图里克湖长期生态研究(LTER)站地表水体光的存在下控制其命运的过程。具体目标包括:1.测量图利克湖LTER的空气和水体中的BFR水平;2.收集、分离和阐明图利克LTER水体中DOM的结构和光解特性;3.研究BFR到DOM的划分,并评估DOM组成在此过程中的作用;4.使用太阳模拟器和图里克湖的自然阳光,分别在存在和不存在DOM的情况下,测量溴化阻燃剂发生直接和间接光解的程度; 5.鉴定BFR光转化产生的反应产物; 6.阐明反应途径,控制BFR在DOM的存在下的光转化。 该项目将研究溴化阻燃剂的环境途径,这是这些物质在北极食物链中生物累积的关键环节。它将主要为博士生提供实验室和后勤支持,并在夏季实地考察期间支持本科生助理。研究人员计划一个积极的外展计划,包括与LTER校园计划和ARCUS的接口,研究生将保持一个研究博客。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Yu-Ping Chin其他文献
Advances in aquatic photochemistry: A special feature to honor the career of Dr. Barbara Sulzberger
- DOI:
10.1007/s00027-009-0020-7 - 发表时间:
2009-05-18 - 期刊:
- 影响因子:1.800
- 作者:
Yu-Ping Chin;Bettina Voelker - 通讯作者:
Bettina Voelker
Sonochemical reactions of dissolved organic matter
- DOI:
10.1163/1568567041856954 - 发表时间:
2004-09-01 - 期刊:
- 影响因子:3.500
- 作者:
Dong Chen;Ziqi He;Linda K. Weavers;Yu-Ping Chin;Harold W. Walker;Patrick G. Hatcher - 通讯作者:
Patrick G. Hatcher
Yu-Ping Chin的其他文献
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{{ truncateString('Yu-Ping Chin', 18)}}的其他基金
Collaborative Research: New Roles for Reactive Oxygen Species in Mediating Carbon Fluxes at the Terrestrial-Aquatic Interface
合作研究:活性氧在调节陆地-水生界面碳通量中的新作用
- 批准号:
2029665 - 财政年份:2021
- 资助金额:
$ 10.98万 - 项目类别:
Standard Grant
Collaborative Research: Predicting Current-Use Pesticides and Emerging Flame Retardants in a Changing Arctic - Fate and Phototransformation
合作研究:预测不断变化的北极中当前使用的农药和新兴阻燃剂 - 命运和光转化
- 批准号:
1804611 - 财政年份:2019
- 资助金额:
$ 10.98万 - 项目类别:
Standard Grant
Collaborative Research: Role of Organic Matter Source on the Photochemical Fate of Pharmaceutical Compounds
合作研究:有机物质源对药物化合物光化学命运的作用
- 批准号:
1133094 - 财政年份:2011
- 资助金额:
$ 10.98万 - 项目类别:
Standard Grant
Collaborative Research: The Role of Plants in the Environmental Fate of Growth Promoters and Antibiotics Used in Concentrated Animal Feed Operations
合作研究:植物在浓缩动物饲料操作中使用的生长促进剂和抗生素的环境归趋中的作用
- 批准号:
0965863 - 财政年份:2010
- 资助金额:
$ 10.98万 - 项目类别:
Standard Grant
Collaborative Research: The Biogeochemical Evolution of Dissolved Organic Matter in a Fluvial System on the Cotton Glacier, Antarctica
合作研究:南极洲科顿冰川河流系统中溶解有机物的生物地球化学演化
- 批准号:
0838949 - 财政年份:2009
- 资助金额:
$ 10.98万 - 项目类别:
Standard Grant
Collaborative Research: Redox Processes in the Sedimentary Porewaters of Prairie Pothole Lakes: Implications for the Attenuation of Pesticides
合作研究:草原坑洼湖沉积孔隙水中的氧化还原过程:对农药减毒的影响
- 批准号:
0911296 - 财政年份:2009
- 资助金额:
$ 10.98万 - 项目类别:
Standard Grant
Optimizing the Design of Constructed Wetlands for the Photodegradation of Organic Contaminants
优化人工湿地光降解有机污染物的设计
- 批准号:
0504434 - 财政年份:2005
- 资助金额:
$ 10.98万 - 项目类别:
Continuing Grant
Collaborative Research: Probing the Reductive Potential of Wetland Sediments and Pore Waters
合作研究:探索湿地沉积物和孔隙水的还原潜力
- 批准号:
0337434 - 财政年份:2004
- 资助金额:
$ 10.98万 - 项目类别:
Continuing Grant
Collaborative Research: Biogeochemistry of Dissolved Organic Matter in Pony Lake, Ross Island.
合作研究:罗斯岛小马湖溶解有机物的生物地球化学。
- 批准号:
0338260 - 财政年份:2004
- 资助金额:
$ 10.98万 - 项目类别:
Standard Grant
Collaborative Research: The Direct and Indirect Photolytic Fate of Persistent Organic Pollutants in Arctic Surface Waters
合作研究:北极地表水中持久性有机污染物的直接和间接光解归宿
- 批准号:
0097142 - 财政年份:2001
- 资助金额:
$ 10.98万 - 项目类别:
Standard Grant
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