POWRE: Influence of Organic Matter Properties on Contaminant Partitioning in Estuarine Systems

POWRE：有机质性质对河口系统污染物分配的影响

• 批准号: 9973849
• 负责人: Catherine Chisholm-Brause
• 金额: $ 7.5万
• 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: 1999
• 资助国家: 美国
• 起止时间: 1999-07-01 至 2001-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9973849&HistoricalAwards=false
• 关键词: POWRE; Influence; Organic; Matter; Properties

9973849Chisholm-BrauseThe objective of the investigation is to develop a basic model or approach that accurately quantifies PAH partitioning and accounts for deviations from EqP theory predictions as a function of particle properties. This model may then be used to predict overall PAH distribution patterns in sediments, sediment-pore water partition coefficients and associated bioavailability of these compounds. Such information is necessary for accurate assessment of the environmental risk of contaminated sediments and remediation of contaminated areas. In addition, results from this work will provide insight into the basic relationships between organic matter reactivity and its physical and chemical properties; such an understanding will prove useful in other, non-contaminant, geochemical studies. This POWRE proposal represents a new direction in the PI's academic career, into field-based marine research that builds upon strong background in laboratory studies of surface geochemical processes. As such, it represents a critical stepping stone as a marine science faculty member. In addition to being research that directly addresses a pertinent scientific question, this work logically leads to broader marine research that integrates field and laboratory approaches. This POWRE proposal will foster her growth towards that rare scientist who fully integrates field and laboratory studies, and strengthen her position as a tenure-track faculty member at a marine institute dominated by senior male faculty.

[9973849 . chisholm - brauss]这项研究的目的是建立一个基本的模型或方法，准确地量化多环芳烃的分配，并解释与EqP理论预测的偏差作为粒子性质的函数。该模型可用于预测沉积物中多环芳烃的总体分布模式、沉积物-孔隙水分配系数以及这些化合物的相关生物利用度。这些信息对于准确评估受污染沉积物的环境风险和对受污染地区进行补救是必要的。此外，这项工作的结果将有助于深入了解有机质反应性与其物理和化学性质之间的基本关系；这种认识将在其他非污染的地球化学研究中证明是有用的。这项power提案代表了PI学术生涯的新方向，即基于表面地球化学过程的实验室研究的实地海洋研究。因此，它代表了一个重要的垫脚石，作为一个海洋科学教员。除了直接解决相关的科学问题之外，这项工作在逻辑上导致了更广泛的海洋研究，整合了现场和实验室的方法。这项POWRE提案将促进她成长为一位罕见的将实地研究和实验室研究完全结合在一起的科学家，并加强她在一个由资深男性教员主导的海洋研究所的终身教职人员的地位。