Source Attribution Methods for Modeling Aquatic Pollution From Non-Point and Atmospheric Sources

9314725克里斯滕森：这是一个支持研究寻找有效方法来确定弥漫水生污染物来源的奖项。调查者计划开发一个化学质量平衡模型和因子分析模型，用于分析污染物的沉积记录，包括考虑物质的测量历史记录和已知来源函数中的误差。这些模型将利用现有沉积物岩心中多环芳烃沉积物和密歇根湖淡水湖河口沉积物中多氯联苯的现有数据集进行评估。此外，还将在密歇根湖、格林湾和威斯康星州的福克斯河下游进行一项以多环芳烃和多氯二苯并对二恶英为重点的实验计划。该项目的目标是开发水源归属方法，以便在水质管理中潜在地使用。这些方法以前被广泛用于表征空气污染物的来源，但在处理非点源污染方面可能被证明特别有效。虽然水污染的点源一般很容易识别，但非点源，如可归因于大气沉积的非点源，则不容易识别。这项研究的结果有望带来改进的模型，可用于污染控制设施的工程设计和受污染的水产资源的修复。***

9314725 Christensen This is an award to support research to find effective methods for determining the sources of diffuse aquatic pollutants. The investigator plans on developing a chemical mass balance model and factor analysis models for analyzing sedimentary records of pollutants including consideration of errors in both the measured historical record of a substance and its known source functions. The models will be evaluated using existing data sets for sediment-associated deposits of polycyclic aromatic hydrocarbons in existing dated sediment cores and polychlorinated biphenyls in sediments from freshwater Lake Michigan estuaries. In addition, an experimental program will be conducted focusing on polycyclic aromatic hydrocarbons and polychlorinated dibenzo- p-dioxines in Lake Michigan, Green Bay and the lower Fox River of Wisconsin. The goal of this project is to develop source-attribution methods for potential use in management of aquatic water quality. These methods, previously extensively used in characterizing sources of air pollutants, may prove especially effective in dealing with non-point sources of pollution. While point-sources of water pollution are generally readily identifiable, non-point sources such as those attributable to deposition from the atmosphere are not. Results of this research are expected to lead to improved models that can be utilized in engineering design of pollution control facilities and remediation of polluted aquatic resources. ***